INFORMIX CORP
SC 13D, 1998-10-16
PREPACKAGED SOFTWARE
Previous: RMS TITANIC INC, NT 10-Q, 1998-10-16
Next: CAPITAL SOURCE II L P A, 8-K/A, 1998-10-16



<PAGE>



                                 UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                 SCHEDULE 13D

                 Under the Securities Exchange Act of 1934


                          RED BRICK SYSTEMS, INC.
- -------------------------------------------------------------------------------
                              (Name of Issuer)

                                COMMON STOCK
- -------------------------------------------------------------------------------
                       (Title of Class of Securities)

                                 756422101
                              (CUSIP Number)


     GARY LLOYD, VICE PRESIDENT, LEGAL, GENERAL COUNSEL AND SECRETARY
                             4100 BOHANNON DRIVE
                       MENLO PARK, CALIFORNIA  94025
                                (650) 926-6300
(Name, Address and Telephone Number of Person Authorized to Receive Notices and 
Communications)

                                October 7, 1998
            (Date of Event which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report 
the acquisition which is the subject of this Schedule 13D, and is filing this 
schedule because of Rule 13d-1(e), (f) or (g), check the following box.

NOTE:  Schedules filed in paper format shall include a signed original and five 
copies of the Schedule, including all exhibits.  See Rule 13d-1(a) for other 
parties to whom copies are to be sent.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the 
Notes).

<PAGE>

                                 SCHEDULE 13D

CUSIP No. 756442                                               Page 2 of 8 Pages
- -------------------------------------------------------------------------------
1  NAME OF REPORTING PERSON
   S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

   Informix Corporation
- -------------------------------------------------------------------------------
2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                 (a) / /
                                                                     (b) / /
   N/A
- -------------------------------------------------------------------------------
3  SEC USE ONLY

- -------------------------------------------------------------------------------
4  SOURCE OF FUNDS*
   00
- -------------------------------------------------------------------------------

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
   ITEMS                                                      2(d)or 2(e) / /

   N/A
- -------------------------------------------------------------------------------
6  CITIZENSHIP OR PLACE OF ORGANIZATION

   STATE OF DELAWARE
- -------------------------------------------------------------------------------
                 7  SOLE VOTING POWER
                    N/A
                 --------------------------------------------------------------
NUMBER OF        8  SHARED VOTING POWER
SHARES              1,175,903
BENEFICIALLY     --------------------------------------------------------------
OWNED BY         9  SOLE DISPOSITIVE POWER
EACH                N/A
REPORTING        --------------------------------------------------------------
PERSON           10 SHARED DISPOSITIVE POWER
WITH                N/A
- -------------------------------------------------------------------------------
11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    1,175,903
- -------------------------------------------------------------------------------
12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*  / /

- -------------------------------------------------------------------------------
13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    9.08%
- -------------------------------------------------------------------------------
14  TYPE OF REPORTING PERSON*
    CO
- -------------------------------------------------------------------------------

                   *SEE INSTRUCTIONS BEFORE FILLING OUT!
           INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7





<PAGE>

                          SCHEDULE 13D



Neither the filing of this Schedule 13D nor any of its contents shall be deemed 
to constitute an admission by Informix Corporation that it is the beneficial 
owner of any of the Common Stock referred to herein for purposes of Section 
13(d) of the Securities Exchange Act of 1934, as amended (the "Act"), or for 
any other purpose, and such beneficial ownership is expressly disclaimed.

ITEM 1.     SECURITY AND ISSUER.

            This statement on Schedule 13D relates to the Common Stock of Red 
            Brick Systems, Inc., a Delaware corporation ("RBS" or "Issuer").  
            The principal executive offices of  RBS are located at 485 
            Alberto Way, Los Gatos, California 95032.

ITEM 2.     IDENTITY AND BACKGROUND.

            The name of the corporation filing this statement is Informix 
            Corporation, a Delaware corporation ("Informix").  Informix's 
            principal business is as a provider of information management 
            software products.  The address of the principal executive 
            offices of Informix is 4100 Bohannon Drive, Menlo Park, 
            California 94025.  Set forth in SCHEDULE A is a list of each of 
            Informix's directors and executive officers as of the date 
            hereof, along with the present principal occupation or employment 
            of such directors and executive officers, their respective 
            citizenship and the name, principal business and address of any 
            corporation or other organization other than Informix in which 
            such employment is conducted. 

            During the past five years neither Informix nor, to Informix's 
            knowledge, any person named in SCHEDULE A to this statement, has 
            been convicted in a criminal proceeding (excluding traffic 
            violations or similar misdemeanors).  Also during the past five 
            years neither Informix nor, to Informix's knowledge, any person 
            named in SCHEDULE A to this statement, was a party to a civil 
            proceeding of a judicial or administrative body of competent 
            jurisdiction as a result of which such person was or is subject 
            to a judgment, decree or final order enjoining future violations 
            of, or prohibiting or mandating activity subject to, federal or 
            state securities laws or finding any violation with respect to 
            such laws.  Consequently, neither Informix nor, to Informix's 
            best knowledge, any person named on SCHEDULE A hereto is required 
            to disclose legal proceedings pursuant to Item 2(d) or 2(e) of 
            Schedule 13D.

ITEM 3.     SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

            Pursuant to an Agreement and Plan of Reorganization, dated as of 
            October 7, 1998, (the "Merger Agreement"), among Informix, IC 
            Merger Corporation, a Delaware corporation and a wholly-owned 
            subsidiary of Informix ("Merger Sub"), and RBS, and subject to the 
            conditions set forth therein (including approval by the 
            stockholders of RBS), Merger Sub will merge with and into RBS and 
            RBS will become a wholly-owned subsidiary of Informix (such 
            events constituting the "Merger").  Upon consummation of the 
            Merger, Merger Sub will cease to exist as a corporation and all 
            of the business, assets, liabilities and obligations of Merger 
            Sub will be merged into RBS with RBS remaining as the surviving 
            corporation 

<PAGE>

                                       SCHEDULE 13D



            (the "Surviving Corporation").  As a result of the Merger, 
            each outstanding share of RBS Common Stock, other than 
            shares owned by RBS, will be converted into the right to 
            receive 0.600 of a share (the "Exchange Ratio") of Informix 
            Common Stock, and each outstanding option to purchase RBS 
            Common Stock will be assumed by Informix (each, an "Assumed 
            Option"), along with any outstanding warrants to purchase 
            RBS Common Stock (each, an "Assumed Warrant") and will 
            become an option or warrant to purchase that number of 
            shares of Informix Common Stock as is equal (rounded down to 
            the nearest whole share) to the number of shares of RBS 
            Common Stock that was subject to such option or warrant 
            immediately prior to the Merger, multiplied by the Exchange 
            Ratio.  The exercise price of each Assumed Option and 
            Assumed Warrant will be equal to the quotient determined by 
            dividing the exercise price per share of RBS Common Stock at 
            which such Assumed Option or Assumed Warrant was exercisable 
            immediately prior to the effective time of the Merger by the 
            Exchange Ratio, rounded up to the nearest whole cent.  The 
            foregoing summary of the Merger is qualified in its entirety 
            by reference to the copy of the Merger Agreement included as 
            EXHIBIT 99.1 to this Schedule 13D and incorporated herein by 
            reference.

            This statement on Schedule 13D also relates to certain Voting 
            Agreements described in Item 4 below and the Stock Option Agreement
            described in Item 6 below.

ITEM 4.     PURPOSE OF TRANSACTION.

            (a) - (b)  As described in Item 3 above, this statement 
            relates to the Merger of Merger Sub, a wholly-owned 
            subsidiary of Informix, with and into RBS in a statutory 
            merger pursuant to the provisions of the Delaware General 
            Corporation Law.  At the effective time of the Merger, the 
            separate existence of Merger Sub will cease and the 
            existence of RBS will continue as the Surviving Corporation 
            and as a wholly-owned subsidiary of Informix.  Holders of 
            outstanding RBS Common Stock will receive, in exchange for 
            each share of Issuer Common Stock held by them, 0.600 shares 
            of Informix Common Stock (the "Exchange Ratio").  Using the 
            same Exchange Ratio, Informix will also assume (i) all 
            outstanding options to purchase RBS Common Stock and (ii) any 
            outstanding warrants to purchase RBS Common Stock upon 
            consummation of the Merger. 

            As an inducement to Informix to enter into the Merger Agreement, 
            each stockholder of RBS who is a party to a Voting Agreement, 
            dated as of October 7, 1998 (each a "Voting Agreement," and 
            collectively, the "Voting Agreements"), among the parties thereto 
            (each a "Voting Agreement Stockholder," and collectively, the 
            "Voting Agreement Stockholders") with Informix, has, by executing 
            a Voting Agreement, irrevocably appointed directors on the Board 
            of Directors of Informix as his, her or its lawful attorney and 
            proxy.  Such proxies give Informix the limited right to vote the 
            shares of RBS Common Stock beneficially owned by the Voting 
            Agreement Stockholders (including any shares of RBS Common Stock 
            that such stockholders acquire after the time they entered into 
            the Voting Agreements) (collectively, the "Shares").  

<PAGE>

                                      SCHEDULE 13D



            The names of the Voting Agreement Stockholders, the number 
            of shares of RBS Common Stock beneficially owned by each 
            such stockholder and the percentage ownership of RBS Common 
            Stock by each such stockholder is set forth in SCHEDULE B 
            hereto which is hereby incorporated by this reference. 

            In exercising its right to vote the Shares as lawful 
            attorney and proxy of the Voting Agreement Stockholders, the 
            Board of Directors of Informix will be limited, at every RBS 
            stockholders meeting and every written consent in lieu of 
            such meeting, to vote the Shares (i) in favor of approval of 
            the Merger and the Merger Agreement and (ii) against 
            approval of any proposal made in opposition to or in 
            competition with the consummation of the Merger and against 
            any merger, consolidation, sale of assets, reorganization or 
            recapitalization with any party other than Informix and any 
            liquidation or winding up of RBS.  Each of the Voting 
            Agreement Stockholders may vote his or her Shares on all 
            other matters.  The Voting Agreements terminate upon the 
            earlier to occur of (i) such date and time as the Merger 
            shall become effective in accordance with the terms and 
            provisions of the Merger Agreement or (ii) such date as the 
            Merger Agreement shall be terminated in accordance with its 
            terms (the "Expiration Date").  Each Voting Agreement 
            Stockholder has agreed not to transfer his or her Shares 
            prior to the Expiration Date.  The foregoing summary of the 
            terms of the Voting Agreement is qualified in its entirety 
            by reference to the form of Voting Agreement included as 
            EXHIBIT 99.2 to this Schedule 13D and incorporated herein by 
            reference.

            (c)     Not applicable.

            (d)     It is anticipated that, upon consummation of the Merger, the
            directors and the initial officers of the Surviving Corporation 
            shall generally be the current directors and officers of Merger 
            Sub (each of whom is an executive officer of Informix), until 
            their respective successors are duly elected or appointed and 
            qualified. 

            (e)     See discussion of Merger in Item 3 above.

            (f)     Other than as a result of the Merger described in Item 3 
            above, not applicable.

            (g)     Upon consummation of the Merger, the Certificate of 
            Incorporation of Merger Sub, as in effect immediately prior to 
            the Merger, shall be the Certificate of Incorporation of the 
            Surviving Corporation until thereafter amended as provided by 
            Delaware Law and such Certificate of Incorporation.  Upon 
            consummation of the Merger, the Bylaws of Merger Sub, as in 
            effect immediately prior to the Merger, shall be the Bylaws of 
            the Surviving Corporation until thereafter amended.

            (h)     Upon consummation of the Merger, RBS Common Stock will 
            be de-listed from The Nasdaq Stock Market.

<PAGE>

                                    SCHEDULE 13D



            (i)     Upon consummation of the Merger, RBS Common Stock will be 
            de-registered under the Securities Act pursuant to Section 
            12(g)(4) of the Securities Act by filing a Form 15 with the 
            Securities and Exchange Commission.

            (j)     Other than described above, Informix currently has no 
            plan or proposals which relate to, or may result in, any of the 
            matters listed in Items 4(a) - (i) of Schedule 13D (although 
            Informix reserves the right to develop such plans).

ITEM 5.     INTEREST IN SECURITIES OF THE ISSUER.

            (a) - (b)  As a result and subject to the terms of the Voting 
            Agreements and the irrevocable proxies granted pursuant thereto, 
            Informix has the sole power to vote an aggregate of 1,175,903 
            shares of RBS Common Stock (including an aggregate of 386,002 
            shares subject to options purchasable by the Voting Agreement 
            Stockholders within 60 days of September 30, 1998) for the 
            limited purposes described in Item 4 above.  Such shares 
            constitute approximately 9.08% of the issued and outstanding 
            shares of Issuer Common Stock as of September 30, 1998 (after 
            giving effect to the exercise of all options exercisable within 
            60 days of such date).  Other than with respect to the provisions 
            of the Voting Agreements, Informix does not have the right to 
            vote the Shares on any other matters.  Informix does not share 
            voting power of any additional shares of RBS Common Stock with 
            regard to the limited purposes set forth in Item 4 above or 
            otherwise.  Informix does not have the sole power to vote or to 
            direct the vote or to dispose or direct the disposition of any 
            shares of RBS Common Stock.  To Informix's knowledge, no shares 
            of Issuer Common Stock are beneficially owned by any of the 
            persons named in SCHEDULE A.  

            (c)     Informix has not effected any transaction in Issuer 
            Common Stock during the past 60 days and, to Informix's 
            knowledge, none of the persons named in SCHEDULE A has effected 
            any transaction in Issuer Common Stock during the past 60 days.

            (d)     Not applicable.

            (e)     Not applicable.

ITEM 6.     CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH 
            RESPECT TO SECURITIES OF THE ISSUER.

            Under the terms of a Stock Option Agreement, dated October 7, 
            1998, between Informix and RBS (the "Stock Option Agreement"), 
            RBS granted Informix an option (the "Merger Option") to acquire a 
            number of shares of RBS Common Stock, at the price of $2.40 per 
            share, equal to 19.9% of shares of RBS capital stock issued and 
            outstanding on the date the Merger Option is exercisable.  The 
            Merger Option is exercisable (i) immediately prior to the earlier 
            of a consummation of or the record date for a meeting of RBS 
            stockholders with regard to an acquisition proposal for an 
            acquisition transaction with a party other than 

<PAGE>

                                    SCHEDULE 13D



            Informix, (ii) immediately prior to the effectiveness of a change 
            of control of the RBS Board of Directors as a result of an 
            election contest within the meaning of Rule14a-11 of the 
            Securities Exchange Act, or (iii) upon the termination of the 
            Merger Agreement in accordance with its terms.  At any time the 
            Merger Option is exercisable, Informix may deliver a "put" notice 
            (the "Put Notice") to RBS,  requiring RBS to pay Informix the 
            difference between the market price and the exercise price of the 
            Merger Option.  Under the terms of the Stock Option Agreement, 
            any proceeds to Informix in excess of $2,000,000, resulting from 
            the exercise of the Merger Option, will be remitted to RBS, and 
            RBS will not be required to pay Informix more than $2,000,000 in 
            connection with the delivery of a Put Notice.  The foregoing 
            summary of the Stock Option Agreement is qualified in its 
            entirety by reference to the form of Stock Option Agreement 
            included as EXHIBIT 99.3 to this Schedule 13D and incorporated 
            herein by reference. 

            Other than the Merger Agreement, the Voting Agreements and the 
            Stock Option Agreement, to the best knowledge of Informix, there 
            are no contracts, arrangements, understandings or relationships 
            (legal or otherwise) among the persons named in Item 2 and 
            between such persons and any person with respect to any 
            securities of RBS, including but not limited to transfer or 
            voting of any of the securities, finder's fees, joint ventures, 
            loan or option arrangement, puts or calls, guarantees of profits, 
            division of profits or loss, or the giving or withholding of  
            proxies.

ITEM 7.     MATERIALS TO BE FILED AS EXHIBITS.

            The following documents are included as exhibits:

            1.  Agreement and Plan of Reorganization, dated October 7, 1998, 
                by and among Informix Corporation, a Delaware corporation, IC 
                Merger Corporation, a Delaware corporation and a wholly-owned 
                subsidiary of Informix Corporation, and Red Brick Systems, 
                Inc., a Delaware corporation.

            2.  Form of Voting Agreement, dated October 7, 1998, between 
                Informix Corporation, a Delaware corporation, and certain 
                stockholders of Red Brick Systems, Inc., a Delaware 
                corporation.

            3.  Form of Stock Option Agreement, dated October 7, 1998, 
                between Informix Corporation, a Delaware corporation, and Red 
                Brick Systems, Inc., a Delaware corporation.

<PAGE>

                                        SCHEDULE 13D



                                         SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and 
correct.


Dated:  October 16, 1998

                                       INFORMIX CORPORATION


                                       By:  /s/ Gary Lloyd
                                          ------------------------------------
                                                Gary Lloyd
                                                Vice President, Legal, General
                                                Counsel and Secretary



<PAGE>

                              SCHEDULE 13D

                               SCHEDULE A
                               ----------
                  DIRECTORS AND EXECUTIVE OFFICERS OF
                          INFORMIX CORPORATION

<TABLE>
<CAPTION>

                                  PRESENT PRINCIPAL OCCUPATION
    NAME AND TITLE(1)                  AND NAME OF EMPLOYER            CITIZENSHIP
- ------------------------       -----------------------------------  ----------------
<S>                            <C>                                  <C>
Robert J. Finocchio, Jr.             Informix Corporation             U.S.
Chairman, President, 
and Chief Executive Officer

Jean-Yves Dexmier                   Informix Corporation              U.S.
Executive Vice President 
and Chief Financial Officer

Karen Blasing                       Informix Corporation              U.S.
Vice President, Business 
Development Finance

Susan T. Daniel                     Informix Corporation              U.S.
Vice President, Human Resources

James F. Engle                      Informix Corporation              U.S.
Vice President and Treasurer

Diane L. Fraiman                    Informix Corporation              U.S.
Vice President, 
Corporate Marketing

J.F. Hendrickson, Jr.               Informix Corporation              U.S.
Vice President, Customer 
Services

Stephen E. Hill                     Informix Corporation              U.S.
Vice President and General 
Manager, Tools Business Unit

Donald W. Hunt                      Informix Corporation              U.S.
Vice President, North American
Field Operations

Gary Lloyd                          Informix Corporation              U.S.
Vice President, Legal, 
General Counsel and Secretary

Leonard Palomino                    Informix Corporation              U.S.
Vice President and General
Manager, Data Warehousing

Wesley Raffel                       Informix Corporation              U.S.
Vice President and General
Manager, Web and E-Commerce

Stephanie P. Schwartz               Informix Corporation              U.S.
Vice President and 
Corporate Controller

Michael A. Stonebraker              Informix Corporation              U.S.
Vice President and Chief 
Technology Officer

F. Steven Weick                     Informix Corporation              U.S.
Vice President, Research
& Development
</TABLE>

- --------------------
        (1) The address for each executive officer or director is c/o Informix 
Corporation, 4100 Bohannon Drive, Menlo Park, California 94025.

<PAGE>

                                  SCHEDULE 13D

                            SCHEDULE A (Continued)

<TABLE>

<S>                            <C>                                    <C>
Leslie G. Denend                  President (Retired)                 U.S.
Director                       Network Associates, Inc.


Albert F. Knorp, Jr.               General Partner                    U.S.
Director and Assistant          Seaport Ventures, L.P.
Secretary


James L. Koch                        Professor                        U.S.
Director                       Santa Clara University


Thomas A. McDonnell                President, Chief                   U.S.
Director                          Executive Officer
                                    and Director
                                  DST Systems, Inc.


George Reyes                       Vice President and                 U.S.
Director                           Corporate Controller
                                  Sun Microsystems, Inc.


Cyril J. Yansouni               Chief Executive Officer and           U.S.
Director                             Chairman of the 
                                    Board of Directors
                                   Read-Rite Corporation
</TABLE>


<PAGE>

                                    SCHEDULE 13D

                                     SCHEDULE B
                                     ----------
                              RED BRICK SYSTEMS, INC.
                           VOTING AGREEMENT STOCKHOLDERS

<TABLE>
<CAPTION>
                                 SHARES OF RBS BENEFICIALLY       PERCENTAGE OF RBS
                                       OWNED BY VOTING       COMMON STOCK BENEFICIALLY
VOTING AGREEMENT STOCKHOLDER        AGREEMENT STOCKHOLDER             OWNED (1)
- -------------------------------  --------------------------  ---------------------------
<S>                              <C>                         <C>


Christopher G. Erickson                  860,684(2)                     6.80%
PRESIDENT, CHIEF EXECUTIVE 
OFFICER AND CHAIRMAN OF 
THE BOARD OF DIRECTORS

Andrew K. Ludwick                          4,000(3)                     0.03%
DIRECTOR

John F. Shoch                              7,750(4)                     0.06%
DIRECTOR

Phillip Fernandez                        194,723(5)                     1.53%
EXECUTIVE VICE PRESIDENT AND
CHIEF OPERATING OFFICER

Ron Barale                                33,584(6)                     0.27%
VICE PRESIDENT, PLATFORM
PRODUCTS GROUP

Peggy DeLeon                              38,464(7)                     0.31%
VICE PRESIDENT OF HUMAN RESOURCES

Andrew W. Priest                          10,948(8)                     0.09%
VICE PRESIDENT, SOLUTION AND 
SERVICES

Paul Rodwick                              25,750(9)                     0.20%
VICE PRESIDENT, MARKETING
</TABLE>

- ---------------------------
(1) Applicable percentage ownership is based on 12,558,738 shares of 
    Common Stock outstanding as of September 30, 1998.   Beneficial 
    ownership is determined in accordance with the rules of the Commission 
    and generally includes voting or investment power with respect to 
    securities, subject to community property laws, where applicable.  
    Shares of Common Stock subject to options that are presently 
    exercisable or exercisable within 60 days of April  30, 1998 are 
    deemed to be beneficially owned by the person holding such options for 
    the purpose of computing the percentage of ownership of such person 
    but are not treated as outstanding for the purpose of computing the 
    percentage of any other person.

(2) Includes 93,609  shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September 30, 1998. 

(3) Includes 4,000 shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 

(4) Includes 7,750 shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 

(5) Includes 171,897 shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 

(6) Includes 33,584 shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 
<PAGE>
                                  SCHEDULE 13D

                            SCHEDULE B (Continued)


(7) Includes 38,464 shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 

(8) Includes 10,948  shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 

(9) Includes 25,750  shares of RBS Common Stock issuable upon exercise of 
    outstanding options which are presently exercisable or will become 
    exercisable within 60 days of September  30, 1998. 

<PAGE>

                                EXHIBIT INDEX

<TABLE>
<CAPTION>

Exhibit No.                    Description
- -----------                    -----------
<S>           <C>
99.1          AGREEMENT AND PLAN OF REORGANIZATION, dated as of October 7, 
              1998, by and among Informix Corporation, a Delaware corporation 
              ("Parent"), IC Merger Corporation, a Delaware corporation and a 
              wholly-owned subsidiary of Parent ("Merger Sub"), and Red Brick 
              Systems, Inc., a Delaware corporation ("Company").

99.2          Form of Voting Agreement, dated as of October 7, 1998, a 
              substantially similar version of which has been executed by and
              between Informix Corporation, a Delaware corporation 
              ("Parent"), and the undersigned stockholder ("Stockholder") of 
              Red Brick Systems, Inc., a Delaware corporation (the "Company").

99.3          Form of STOCK OPTION AGREEMENT, dated as of October 7, 1998, a
              substantially similar version of which has been entered into by 
              and between Red Brick Systems, Inc., a Delaware corporation 
              ("RED BRICK") and Informix Corporation, a Delaware corporation 
              ("INFORMIX").
</TABLE>



<PAGE>
                                  SCHEDULE 13D
                                  EXHIBIT 99.1
 
                                ----------------
 
                      AGREEMENT AND PLAN OF REORGANIZATION
<PAGE>
                                                                    EXHIBIT 99.1
 
                      AGREEMENT AND PLAN OF REORGANIZATION
 
                                  BY AND AMONG
 
                              INFORMIX CORPORATION
 
                             IC MERGER CORPORATION
 
                                      AND
 
                            RED BRICK SYSTEMS, INC.
 
                          Dated as of October 7, 1998
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                     PAGE
                                                                                     ----
<C>              <C>   <S>                                                           <C>
            ARTICLE I
                 THE MERGER .......................................................    1
                  1.1  The Merger .................................................    1
                  1.2  Effective Time; Closing ....................................    1
                  1.3  Effect of the Merger .......................................    2
                  1.4  Certificate of Incorporation; Bylaws .......................    2
                  1.5  Directors and Officers .....................................    2
                  1.6  Effect on Capital Stock ....................................    2
                  1.7  Surrender of Certificates ..................................    3
                  1.8  No Further Ownership Rights in Company Common Stock ........    4
                  1.9  Lost, Stolen or Destroyed Certificates .....................    4
                  1.10 Tax and Accounting Consequences ............................    5
                  1.11 Taking of Necessary Action; Further Action .................    5
 
           ARTICLE II
                 REPRESENTATIONS AND WARRANTIES OF COMPANY ........................    5
                  2.1  Organization and Qualification; Subsidiaries ...............    5
                  2.2  Certificate of Incorporation and Bylaws ....................    5
                  2.3  Capitalization .............................................    5
                  2.4  Authority Relative to this Agreement .......................    6
                  2.5  No Conflict; Required Filings and Consents .................    7
                  2.6  Compliance; Permits ........................................    7
                  2.7  SEC Filings; Financial Statements ..........................    8
                  2.8  No Undisclosed Liabilities .................................    8
                  2.9  Absence of Certain Changes or Events .......................    8
                  2.10 Absence of Litigation ......................................    9
                  2.11 Employee Benefit Plans .....................................    9
                  2.12 Labor Matters ..............................................   11
                  2.13 Registration Statement; Proxy Statement ....................   11
                  2.14 Restrictions on Business Activities ........................   11
                  2.15 Title to Property ..........................................   11
                  2.16 Taxes ......................................................   11
                  2.17 Environmental Matters ......................................   12
                  2.18 Brokers ....................................................   12
                  2.19 Intellectual Property ......................................   12
                  2.20 Agreements, Contracts and Commitments ......................   14
                  2.21 Company Rights Plan ........................................   15
                  2.22 Insurance ..................................................   15
                  2.23 Opinion of Financial Advisor ...............................   16
                  2.24 Board Approval .............................................   16
                  2.25 Vote Required ..............................................   16
                  2.26 State Takeover Statutes ....................................   16
 
          ARTICLE III
                 REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB ..........   16
                  3.1  Organization and Qualification; Subsidiaries ...............   16
                  3.2  Certificate of Incorporation and Bylaws ....................   17
                  3.3  Capitalization .............................................   17
                  3.4  Authority Relative to this Agreement .......................   17
                  3.5  No Conflict; Required Filings and Consents .................   17
                  3.6  SEC Filings; Financial Statements ..........................   18
                  3.7  Absence of Certain Changes or Events .......................   19
                  3.8  Absence of Litigation ......................................   19
                  3.9  Registration Statement; Proxy Statement ....................   19
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
                                                                                     PAGE
                                                                                     ----
<C>              <C>   <S>                                                           <C>
                  3.10 Board Approval .............................................   19
                  3.11 Interim Operations of Merger Sub ...........................   19
 
           ARTICLE IV
                 CONDUCT PRIOR TO THE EFFECTIVE TIME ..............................   19
                  4.1  Conduct of Business by Company .............................   19
                  4.2  Conduct of Business by Parent ..............................   22
 
            ARTICLE V
                 ADDITIONAL AGREEMENTS ............................................   22
                  5.1  Proxy Statement/Prospectus; Registration Statement; Other
                         Filings; Board Recommendations ...........................   22
                  5.2  Meeting of Company Stockholders ............................   22
                  5.3  Confidentiality; Access to Information .....................   24
                  5.4  No Solicitation ............................................   24
                  5.5  Public Disclosure ..........................................   25
                  5.6  Reasonable Efforts; Notification ...........................   26
                  5.7  Third Party Consents .......................................   26
                  5.8  Stock Options and Employee Benefits ........................   26
                  5.9  Form S-8 ...................................................   28
                  5.10 Indemnification ............................................   28
                  5.11 Nasdaq Listing .............................................   28
                  5.12 Company Affiliate Agreement ................................   28
                  5.13 Regulatory Filings; Reasonable Efforts .....................   28
                  5.14 Comfort Letter .............................................   29
                  5.15 Company Audit ..............................................   29
                  5.16 No Rights Plan Amendment ...................................   29
                  5.17 Noncompetition Agreements ..................................   29
 
           ARTICLE VI
                 CONDITIONS TO THE MERGER .........................................   29
                  6.1  Conditions to Obligations of Each Party to Effect the
                         Merger ...................................................   29
                  6.2  Additional Conditions to Obligations of Company ............   30
                  6.3  Additional Conditions to the Obligations of Parent and
                         Merger Sub ...............................................   30
 
          ARTICLE VII
                 TERMINATION, AMENDMENT AND WAIVER ................................   32
                  7.1  Termination ................................................   32
                  7.2  Notice of Termination; Effect of Termination ...............   33
                  7.3  Fees and Expenses ..........................................   33
                  7.4  Amendment ..................................................   33
                  7.5  Extension; Waiver ..........................................   33
 
         ARTICLE VIII
                 GENERAL PROVISIONS ...............................................   34
                  8.1  Non-Survival of Representations and Warranties .............   34
                  8.2  Notices ....................................................   34
                  8.3  Interpretation; Knowledge ..................................   34
                  8.4  Counterparts ...............................................   35
                  8.5  Entire Agreement; Third Party Beneficiaries ................   35
                  8.6  Severability ...............................................   35
                  8.7  Other Remedies; Specific Performance .......................   35
                  8.8  Governing Law ..............................................   36
                  8.9  Rules of Construction ......................................   36
                  8.10 Assignment .................................................   36
                  8.11 Waiver of Jury Trial .......................................   36
</TABLE>
 
<PAGE>
                               INDEX OF EXHIBITS
 
<TABLE>
<S>          <C>
Exhibit A    Form of Voting Agreement
 
Exhibit B    Form of Stock Option Agreement
 
Exhibit C    Form of Affiliate Agreement
 
Exhibit D-1  Persons to Sign Noncompetition Agreement
 
Exhibit D-2  Form of Noncompetition Agreement
</TABLE>
<PAGE>
                      AGREEMENT AND PLAN OF REORGANIZATION
 
    This AGREEMENT AND PLAN OF REORGANIZATION is made and entered into as of
October 7, 1998, among Informix Corporation, a Delaware corporation ("Parent"),
IC Merger Corporation, a Delaware corporation and a wholly-owned subsidiary of
Parent ("Merger Sub"), and Red Brick Systems, Inc., a Delaware corporation
("Company").
 
                                    RECITALS
 
    A.  Upon the terms and subject to the conditions of this Agreement (as
defined in Section 1.2 below) and in accordance with the Delaware General
Corporation Law ("Delaware Law"), Parent and Company intend to enter into a
business combination transaction.
 
    B.  The Board of Directors of Company (i) has determined that the Merger (as
defined in Section 1.1) is consistent with and in furtherance of the long-term
business strategy of Company and fair to, and in the best interests of, Company
and its stockholders, (ii) has approved this Agreement, the Merger and the other
transactions contemplated by this Agreement and (iii) has determined to
recommend that the stockholders of Company adopt and approve this Agreement and
approve the Merger.
 
    C.  Concurrently with the execution of this Agreement, and as a condition
and inducement to Parent's willingness to enter into this Agreement, certain
affiliates of Company are entering into Voting Agreements in substantially the
form attached hereto as EXHIBIT A (the "Company Voting Agreements").
 
    D. Concurrently with the execution of this Agreement, and as a condition and
inducement to Parent's willingness to enter into this Agreement, Company shall
execute and deliver a Stock Option Agreement in favor of Parent in substantially
the form attached hereto as EXHIBIT B (the "Company Stock Option Agreement").
The Board of Directors of Company has approved the Company Stock Option
Agreement.
 
    E.  The parties intend, by executing this Agreement, to adopt a plan of
reorganization within the meaning of Section 368 of the Internal Revenue Code of
1986, as amended (the "Code").
 
    NOW, THEREFORE, in consideration of the covenants, promises and
representations set forth herein, and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties agree
as follows:
 
                                   ARTICLE I
                                   THE MERGER
 
    1.1  THE MERGER.  At the Effective Time (as defined in Section 1.2) and
subject to and upon the terms and conditions of this Agreement and the
applicable provisions of Delaware Law, Merger Sub shall be merged with and into
Company (the "Merger"), the separate corporate existence of Merger Sub shall
cease and Company shall continue as the surviving corporation. Company as the
surviving corporation after the Merger is hereinafter sometimes referred to as
the "Surviving Corporation."
 
    1.2  EFFECTIVE TIME; CLOSING.  Subject to the provisions of this Agreement,
the parties hereto shall cause the Merger to be consummated by filing a
Certificate of Merger with the Secretary of State of the State of Delaware in
accordance with the relevant provisions of Delaware Law (the "Certificate of
Merger") (the time of such filing (or such later time as may be agreed in
writing by Company and Parent and specified in the Certificate of Merger) being
the "Effective Time") as soon as practicable on or after the Closing Date (as
herein defined). Unless the context otherwise requires, the term "Agreement" as
used herein refers collectively to this Agreement and Plan of Reorganization and
the Certificate of Merger. The closing of the Merger (the "Closing") shall take
place at the offices of Wilson Sonsini Goodrich & Rosati, Professional
Corporation, at a time and date to be specified by the parties, which shall be
no later than the second business day after the satisfaction or waiver of the
conditions set forth in Article VI, or at such other time, date and location as
the parties hereto agree in writing (the "Closing Date").
<PAGE>
    1.3  EFFECT OF THE MERGER.  At the Effective Time, the effect of the Merger
shall be as provided in this Agreement and the applicable provisions of Delaware
Law. Without limiting the generality of the foregoing, and subject thereto, at
the Effective Time all the property, rights, privileges, powers and franchises
of Company and Merger Sub shall vest in the Surviving Corporation, and all
debts, liabilities and duties of Company and Merger Sub shall become the debts,
liabilities and duties of the Surviving Corporation.
 
    1.4  CERTIFICATE OF INCORPORATION; BYLAWS.
 
    (a) At the Effective Time, the Certificate of Incorporation of Merger Sub,
as in effect immediately prior to the Effective Time, shall be the Certificate
of Incorporation of the Surviving Corporation until thereafter amended as
provided by law and such Certificate of Incorporation of the Surviving
Corporation; PROVIDED, HOWEVER, that at the Effective Time the Certificate of
Incorporation of the Surviving Corporation shall be amended so that the name of
the Surviving Corporation shall be "Red Brick Systems, Inc."
 
    (b) The Bylaws of Merger Sub, as in effect immediately prior to the
Effective Time, shall be, at the Effective Time, the Bylaws of the Surviving
Corporation until thereafter amended.
 
    1.5  DIRECTORS AND OFFICERS.  The initial directors of the Surviving
Corporation shall be the directors of Merger Sub immediately prior to the
Effective Time, until their respective successors are duly elected or appointed
and qualified. The initial officers of the Surviving Corporation shall be the
officers of Merger Sub immediately prior to the Effective Time, until their
respective successors are duly appointed.
 
    1.6  EFFECT ON CAPITAL STOCK.  At the Effective Time, by virtue of the
Merger and without any action on the part of Merger Sub, Company or the holders
of any of the following securities:
 
        (a)  CONVERSION OF COMPANY COMMON STOCK.  Each share of Common Stock,
    $0.0001 par value per share, of Company (the "Company Common Stock")
    (including, with respect to each such share of Company Common Stock, the
    associated Rights (as defined in that certain Rights Agreement (the "Company
    Rights Plan") dated as of July 21, 1997 between the Company and Harris Trust
    and Savings Bank as Rights Agent) issued and outstanding immediately prior
    to the Effective Time, other than any shares of Company Common Stock to be
    canceled pursuant to Section 1.6(b), will be canceled and extinguished and
    automatically converted (subject to Sections 1.6(e) and (f)) into the right
    to receive 0.600 (the "Exchange Ratio") shares of Common Stock of Parent
    (the "Parent Common Stock") upon surrender of the certificate representing
    such share of Company Common Stock in the manner provided in Section 1.7 (or
    in the case of a lost, stolen or destroyed certificate, upon delivery of an
    affidavit (and bond, if required) in the manner provided in Section 1.9).
 
        (b)  CANCELLATION OF PARENT-OWNED STOCK.  Each share of Company Common
    Stock held by Company or owned by Merger Sub, Parent or any direct or
    indirect wholly-owned subsidiary of Company or of Parent immediately prior
    to the Effective Time shall be canceled and extinguished without any
    conversion thereof.
 
        (c)  STOCK OPTIONS; EMPLOYEE STOCK PURCHASE PLANS.  At the Effective
    Time, all options to purchase Company Common Stock then outstanding under
    Company's 1995 Stock Option Plan (including options granted under the
    predecessor 1991 Stock Option Plan) and the Company's Supplemental Stock
    Option Plan (collectively, the "Company Stock Option Plans"), as well as
    those options described in Section 2.3 (viii) hereof, shall be assumed by
    Parent in accordance with Section 5.8 hereof. Rights outstanding under
    Company's 1998 Employee Stock Purchase Plan (the "ESPP") shall be treated as
    set forth in Section 5.8.
 
        (d)  WARRANTS.  At the Effective Time, (i) those certain warrants to
    purchase Common Stock of the Company, under which 69,416 shares remain
    exercisable (the "Common Warrants") and (ii) that certain warrant issued to
    Comdisco, Inc. for the purchase of 15,555 shares of Company Common Stock
    (the "Comdisco Warrant") shall be assumed by Parent in accordance with the
    terms thereof. In
 
                                       2
<PAGE>
    this regard, the Company agrees to provide the holders of the Common
    Warrants and the Comdisco Warrants (collectively the "Company Warrants")
    with any and all notices required as a result of the Merger and the
    transactions contemplated thereby.
 
        (e)  CAPITAL STOCK OF MERGER SUB.  Each share of Common Stock, $0.001
    par value per share, of Merger Sub (the "Merger Sub Common Stock") issued
    and outstanding immediately prior to the Effective Time shall be converted
    into one validly issued, fully paid and nonassessable share of Common Stock,
    $0.0001 par value per share, of the Surviving Corporation. Each certificate
    evidencing ownership of shares of Merger Sub Common Stock shall evidence
    ownership of such shares of capital stock of the Surviving Corporation.
 
        (f)  ADJUSTMENTS TO EXCHANGE RATIO.  The Exchange Ratio shall be
    adjusted to reflect appropriately the effect of any stock split, reverse
    stock split, stock dividend (including any dividend or distribution of
    securities convertible into Parent Common Stock or Company Common Stock),
    reorganization, recapitalization, reclassification or other like change with
    respect to Parent Common Stock or Company Common Stock occurring on or after
    the date hereof and prior to the Effective Time.
 
        (g)  FRACTIONAL SHARES.  No fraction of a share of Parent Common Stock
    will be issued by virtue of the Merger, but in lieu thereof each holder of
    shares of Company Common Stock who would otherwise be entitled to a fraction
    of a share of Parent Common Stock (after aggregating all fractional shares
    of Parent Common Stock that otherwise would be received by such holder)
    shall receive from Parent an amount of cash (rounded to the nearest whole
    cent) equal to the product of (i) such fraction, multiplied by (ii) the
    average closing price of one share of Parent Common Stock for the five (5)
    most recent days that Parent Common Stock has traded ending on the trading
    day immediately prior to the Effective Time, as reported on the Nasdaq
    National Market System ("Nasdaq").
 
    1.7  SURRENDER OF CERTIFICATES.
 
        (a)  EXCHANGE AGENT.  Parent shall select a bank or trust company
    reasonably acceptable to Company to act as the exchange agent (the "Exchange
    Agent") in the Merger.
 
        (b)  PARENT TO PROVIDE COMMON STOCK.  Promptly after the Effective Time
    (but in no event later than three (3) business days thereafter), Parent
    shall make available to the Exchange Agent for exchange in accordance with
    this Article I, the shares of Parent Common Stock issuable pursuant to
    Section 1.6 in exchange for outstanding shares of Company Common Stock, and
    cash in an amount sufficient for payment in lieu of fractional shares
    pursuant to Section 1.6(g) and any dividends or distributions to which
    holders of shares of Company Common Stock may be entitled pursuant to
    Section 1.7(d).
 
        (c)  EXCHANGE PROCEDURES.  Promptly after the Effective Time (but in no
    event later than five (5) business days thereafter), Parent shall cause the
    Exchange Agent to mail to each holder of record (as of the Effective Time)
    of a certificate or certificates (the "Certificates"), which immediately
    prior to the Effective Time represented outstanding shares of Company Common
    Stock whose shares were converted into shares of Parent Common Stock
    pursuant to Section 1.6, cash in lieu of any fractional shares pursuant to
    Section 1.6(g) and any dividends or other distributions pursuant to Section
    1.7(d), (i) a letter of transmittal in customary form (which shall specify
    that delivery shall be effected, and risk of loss and title to the
    Certificates shall pass, only upon delivery of the Certificates to the
    Exchange Agent and shall contain such other provisions as Parent may
    reasonably specify) and (ii) instructions for use in effecting the surrender
    of the Certificates in exchange for certificates representing shares of
    Parent Common Stock, cash in lieu of any fractional shares pursuant to
    Section 1.6(g) and any dividends or other distributions pursuant to Section
    1.7(d). Upon surrender of Certificates for cancellation to the Exchange
    Agent or to such other agent or agents as may be appointed by Parent,
    together with such letter of transmittal, duly completed and validly
    executed in accordance with the
 
                                       3
<PAGE>
    instructions thereto, the holders of such Certificates shall be entitled to
    receive in exchange therefor certificates representing the number of whole
    shares of Parent Common Stock into which their shares of Company Common
    Stock were converted at the Effective Time, payment in lieu of fractional
    shares which such holders have the right to receive pursuant to Section
    1.6(g) and any dividends or distributions payable pursuant to Section
    1.7(d), and the Certificates so surrendered shall forthwith be canceled.
    Until so surrendered, outstanding Certificates will be deemed from and after
    the Effective Time, for all corporate purposes, subject to Section 1.7(d) as
    to the payment of dividends, to evidence only the ownership of the number of
    full shares of Parent Common Stock into which such shares of Company Common
    Stock shall have been so converted and the right to receive an amount in
    cash in lieu of the issuance of any fractional shares in accordance with
    Section 1.6(g) and any dividends or distributions payable pursuant to
    Section 1.7(d).
 
        (d)  DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES.  No dividends or
    other distributions declared or made after the date of this Agreement with
    respect to Parent Common Stock with a record date after the Effective Time
    will be paid to the holders of any unsurrendered Certificates with respect
    to the shares of Parent Common Stock represented thereby until the holders
    of record of such Certificates shall surrender such Certificates. Subject to
    applicable law, following surrender of any such Certificates, the Exchange
    Agent shall deliver to the record holders thereof, without interest,
    certificates representing whole shares of Parent Common Stock issued in
    exchange therefor along with payment in lieu of fractional shares pursuant
    to Section 1.6(g) hereof and the amount of any such dividends or other
    distributions with a record date after the Effective Time payable with
    respect to such whole shares of Parent Common Stock.
 
        (e)  TRANSFERS OF OWNERSHIP.  If certificates representing shares of
    Parent Common Stock are to be issued in a name other than that in which the
    Certificates surrendered in exchange therefor are registered, it will be a
    condition of the issuance thereof that the Certificates so surrendered will
    be properly endorsed and otherwise in proper form for transfer and that the
    persons requesting such exchange will have paid to Parent or any agent
    designated by it any transfer or other taxes required by reason of the
    issuance of certificates representing shares of Parent Common Stock in any
    name other than that of the registered holder of the Certificates
    surrendered, or established to the satisfaction of Parent or any agent
    designated by it that such tax has been paid or is not payable.
 
        (f)  NO LIABILITY.  Notwithstanding anything to the contrary in this
    Section 1.7, neither the Exchange Agent, Parent, the Surviving Corporation
    nor any party hereto shall be liable to a holder of shares of Parent Common
    Stock or Company Common Stock for any amount properly paid to a public
    official pursuant to any applicable abandoned property, escheat or similar
    law.
 
    1.8  NO FURTHER OWNERSHIP RIGHTS IN COMPANY COMMON STOCK.  All shares of
Parent Common Stock issued in accordance with the terms hereof (including any
cash paid in respect thereof pursuant to Section 1.6(g) and 1.7(d)) shall be
deemed to have been issued in full satisfaction of all rights pertaining to such
shares of Company Common Stock, and there shall be no further registration of
transfers on the records of the Surviving Corporation of shares of Company
Common Stock which were outstanding immediately prior to the Effective Time. If
after the Effective Time Certificates are presented to the Surviving Corporation
for any reason, they shall be canceled and exchanged as provided in this Article
I.
 
    1.9  LOST, STOLEN OR DESTROYED CERTIFICATES.  In the event that any
Certificates shall have been lost, stolen or destroyed, the Exchange Agent shall
issue in exchange for such lost, stolen or destroyed Certificates, upon the
making of an affidavit of that fact by the holder thereof, certificates
representing the shares of Parent Common Stock into which the shares of Company
Common Stock represented by such Certificates were converted pursuant to Section
1.6, cash for fractional shares, if any, as may be required pursuant to Section
1.6(g) and any dividends or distributions payable pursuant to Section 1.7(d);
PROVIDED, HOWEVER, that Parent may, in its discretion and as a condition
precedent to the issuance of such certificates representing shares of Parent
Common Stock, cash and other distributions, require the owner of such lost,
 
                                       4
<PAGE>
stolen or destroyed Certificates to deliver a bond in such sum as it may
reasonably direct as indemnity against any claim that may be made against
Parent, the Surviving Corporation or the Exchange Agent with respect to the
Certificates alleged to have been lost, stolen or destroyed.
 
    1.10  TAX AND ACCOUNTING CONSEQUENCES.
 
    (a) It is intended by the parties hereto that the Merger shall constitute a
reorganization within the meaning of Section 368 of the Code. The parties hereto
adopt this Agreement as a "plan of reorganization" within the meaning of
Sections 1.368-2(g) and 1.368-3(a) of the United States Income Tax Regulations.
 
    (b) It is intended by the parties hereto that the Merger shall be treated as
a purchase for accounting purposes.
 
    1.11  TAKING OF NECESSARY ACTION; FURTHER ACTION.  If, at any time after the
Effective Time, any further action is necessary or desirable to carry out the
purposes of this Agreement and to vest the Surviving Corporation with full
right, title and possession to all assets, property, rights, privileges, powers
and franchises of Company and Merger Sub, the officers and directors of Company
and Merger Sub will take all such lawful and necessary action. Parent shall
cause Merger Sub to perform all of its obligations relating to this Agreement
and the transactions contemplated thereby.
 
                                   ARTICLE II
                   REPRESENTATIONS AND WARRANTIES OF COMPANY
 
    Company represents and warrants to Parent and Merger Sub, subject to such
exceptions as are set forth in the Company SEC Reports (as defined in Section
2.7.1 or specifically disclosed in the disclosure letter (referencing the
appropriate section and paragraph numbers) delivered by Company to Parent on or
prior to the date of this Agreement (the "Company Disclosure Letter"), as
follows:
 
    2.1  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.  Each of Company and its
subsidiaries is a corporation duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation and has the
requisite corporate power and authority to own, lease and operate its assets and
properties and to carry on its business as it is now being conducted. Each of
Company and its subsidiaries is in possession of all franchises, grants,
authorizations, licenses, permits, easements, consents, certificates, approvals
and orders ("Approvals") necessary to own, lease and operate the properties it
purports to own, operate or lease and to carry on its business as it is now
being conducted, except where the failure to have such Approvals would not,
individually or in the aggregate, have a Material Adverse Effect (as defined in
Section 8.3(c)) on the Company. Each of Company and its subsidiaries is duly
qualified or licensed as a foreign corporation to do business, and is in good
standing, in each jurisdiction where the character of the properties owned,
leased or operated by it or the nature of its activities makes such
qualification or licensing necessary, except for such failures to be so duly
qualified or licensed and in good standing that would not, either individually
or in the aggregate, have a Material Adverse Effect on the Company. Other than
wholly-owned subsidiaries, Company does not directly or indirectly own any
equity or similar interest in, or any interest convertible or exchangeable or
exercisable for, any equity or similar interest in, any corporation,
partnership, joint venture or other business, association or entity.
 
    2.2  CERTIFICATE OF INCORPORATION AND BYLAWS.  Company has previously
furnished to Parent a complete and correct copy of its Certificate of
Incorporation and Bylaws as amended to date. Such Certificate of Incorporation,
Bylaws and equivalent organizational documents of each of its subsidiaries are
in full force and effect. Neither Company nor any of its subsidiaries is in
violation of any of the provisions of its Certificate of Incorporation or Bylaws
or equivalent organizational documents.
 
    2.3  CAPITALIZATION.  The authorized capital stock of Company consists of
50,000,000 shares of Company Common Stock and 2,000,000 shares of Preferred
Stock ("Company Preferred Stock"), each having a par value of $0.0001 per share.
At the close of business on September 30, 1998, (i) 12,558,738
 
                                       5
<PAGE>
shares of Company Common Stock were issued and outstanding all of which are
validly issued, fully paid and nonassessable, (ii) no shares of Company Common
Stock were held in treasury by Company or by subsidiaries of Company, (iii)
1,500,000 shares of Company Common Stock were available for future issuance
pursuant to Company's employee stock purchase plan, (iv) 2,645,800 shares of
Company Common Stock were reserved for issuance upon the exercise of outstanding
options to purchase Company Common Stock under the 1995 Option Plan, (v) 28,359
shares of Company Common Stock were available for future grant under the 1995
Option Plan, (vi) 1,856,050 shares of Company Common Stock were reserved for
issuance upon exercise of outstanding options to purchase Company Common Stock
under the Supplemental Stock Option Plan, (vii) 191,512 shares of Company Common
Stock were available for future grant under the Supplemental Stock Option Plan;
(viii) 27,500 shares of Company Common Stock were reserved for issuance upon
exercise of options to purchase Company Common Stock not made under the 1995
Stock Option Plan or the Supplemental Stock Option Plan, (ix) 205,163 shares of
Company Common Stock were reserved for future issuance upon conversion of
Company Warrants (as described in Section 1.6(d)) and (x) a sufficient number of
shares of Company Common Stock were reserved for future issuance pursuant to the
Company Option Agreement. As of the date hereof, no shares of Company Preferred
Stock were issued or outstanding and 30,000 shares of Company Series A Preferred
were reserved for issuance upon exercise of the Company Rights. No change in
such capitalization has occurred between September 30, 1998 and the date hereof
except (x) the issuance of shares of Company Common Stock pursuant to the
exercise of outstanding options or warrants or (y) the cancellation of unvested
options for Common Stock held by, or the repurchase of unvested shares of Common
Stock from, directors employees, consultants or other service providers of the
Company pursuant to the terms of their stock option, stock purchase or stock
restriction agreements. Except as set forth in this Section 2.3, as of the date
of this Agreement, there are no options, warrants or other rights, agreements,
arrangements or commitments of any character relating to the issued or unissued
capital stock of Company or any of its subsidiaries or obligating Company or any
of its subsidiaries to issue or sell any shares of capital stock of, or other
equity interests in, Company or any of its subsidiaries. All shares of Company
Common Stock subject to issuance as aforesaid, upon issuance on the terms and
conditions specified in the instruments pursuant to which they are issuable,
shall be duly authorized, validly issued, fully paid and nonassessable. There
are no obligations, contingent or otherwise, of Company or any of its
subsidiaries to repurchase, redeem or otherwise acquire any shares of Company
Common Stock or the capital stock of any subsidiary or to provide funds to or
make any investment (in the form of a loan, capital contribution or otherwise)
in any such subsidiary or any other entity other than guarantees of obligations
of subsidiaries entered into in the ordinary course of business. All of the
outstanding shares of capital stock of each of Company's subsidiaries are duly
authorized, validly issued, fully paid and nonassessable and all such shares are
owned by Company or another subsidiary free and clear of all security interests,
liens, claims, pledges, agreements, limitations in Company's voting rights,
charges or other encumbrances of any nature whatsoever.
 
    2.4  AUTHORITY RELATIVE TO THIS AGREEMENT.  Company has all necessary
corporate power and authority to execute and deliver this Agreement and the
Company Option Agreement and to perform its obligations hereunder and thereunder
and, subject to obtaining the approval of the stockholders of Company of the
Merger, to consummate the transactions contemplated hereby and thereby. The
execution and delivery of this Agreement and the Company Option Agreement by
Company and the consummation by Company of the transactions contemplated hereby
and thereby have been duly and validly authorized by all necessary corporate
action on the part of Company and no other corporate proceedings on the part of
Company are necessary to authorize this Agreement, the Company Option Agreement
or to consummate the transactions so contemplated (other than, with respect to
the Merger, the approval and adoption of this Agreement by holders of a majority
of the outstanding shares of Company Common Stock in accordance with the
Delaware General Corporation Law and Company's Certificate of Incorporation and
Bylaws). This Agreement and the Company Option Agreement have been duly and
validly executed and delivered by Company and, assuming the due authorization,
execution and delivery by Parent and Merger Sub,
 
                                       6
<PAGE>
constitute legal and binding obligations of Company, enforceable against Company
in accordance with their respective terms.
 
    2.5  NO CONFLICT; REQUIRED FILINGS AND CONSENTS.
 
    2.5.1  The execution and delivery of this Agreement and the Company Option
Agreement by Company do not, and the performance of this Agreement and the
Company Option Agreement by Company shall not, (i) conflict with or violate the
Certificate of Incorporation or Bylaws or equivalent organizational documents of
Company or any of its subsidiaries, (ii) subject to obtaining the approval of
Company's stockholders of the Merger and compliance with the requirements set
forth in Section 2.5.2 below, conflict with or violate any law, rule,
regulation, order, judgment or decree applicable to Company or any of its
subsidiaries or by which its or any of their respective properties is bound or
affected, or (iii) result in any breach of or constitute a default (or an event
that with notice or lapse of time or both would become a default) under, or
impair Company's rights or alter the rights or obligations of any third party
under, or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in the creation of a lien or encumbrance on any of
the properties or assets of Company or any of its subsidiaries pursuant to, any
material note, bond, mortgage, indenture, contract, agreement, lease, license,
permit, franchise or other instrument or obligation to which Company or any of
its subsidiaries is a party or by which Company or any of its subsidiaries or
its or any of their respective properties are bound or affected (except, in the
case of end-user license agreements not relating to the Company's fifty largest
accounts measured in terms of revenue generated during the two-year period prior
to the date hereof (but not with respect to any other agreements, end-user or
otherwise), where such breach, default, impairment of rights, alteration of
rights or obligations, right of termination, amendment, acceleration or
cancellation, or creation of a lien or encumbrance (i) would not prevent
consummation of the Merger or otherwise prevent Company from performing its
obligations under this Agreement or (ii) could not, individually or in the
aggregate, reasonably be expected to have a Material Adverse Effect on the
Company).
 
    2.5.2  The execution and delivery of this Agreement and the Company Option
Agreement by Company do not, and the performance of this Agreement by Company
shall not, require any consent, approval, authorization or permit of, or filing
with or notification to, any court, administrative agency, commission,
governmental or regulatory authority, domestic or foreign (a "Governmental
Entity"), except (A) for applicable requirements, if any, of the Securities Act
of 1933, as amended (the "Securities Act"), the Securities Exchange Act of 1934,
as amended (the "Exchange Act"), state securities laws ("Blue Sky Laws"), the
pre-merger notification requirements (the "HSR Approval") of the
Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act")
and of foreign Governmental Entities and the rules and regulations thereunder,
the rules and regulations of the Nasdaq Stock Market, and the filing and
recordation of the Certificate of Merger as required by the Delaware General
Corporation Law and (B) where the failure to obtain such consents, approvals,
authorizations or permits, or to make such filings or notifications, (i) would
not prevent consummation of the Merger or otherwise prevent Company from
performing its obligations under this Agreement or (ii) could not, individually
or in the aggregate, reasonably be expected to have a Material Adverse Effect on
the Company.
 
    2.6  COMPLIANCE; PERMITS.
 
    2.6.1  Neither Company nor any of its subsidiaries is in conflict with, or
in default or violation of, (i) any law, rule, regulation, order, judgment or
decree applicable to Company or any of its subsidiaries or by which its or any
of their respective properties is bound or affected, or (ii) any note, bond,
mortgage, indenture, contract, agreement, lease, license, permit, franchise or
other instrument or obligation to which Company or any of its subsidiaries is a
party or by which Company or any of its subsidiaries or its or any of their
respective properties is bound or affected, except for any conflicts, defaults
or violations which could not reasonably be expected to have, individually or in
the aggregate, a Material Adverse Effect on the Company. To the knowledge of
Company, no investigation or review by any governmental or regulatory body or
authority is pending or threatened against Company or its subsidiaries, nor has
any governmental
 
                                       7
<PAGE>
or regulatory body or authority indicated an intention to conduct the same,
other than, in each such case, those the outcome of which could not,
individually or in the aggregate, reasonably be expected to have a Material
Adverse Effect on the Company.
 
    2.6.2  Company and its subsidiaries hold all permits, licenses, variances,
exemptions, orders and approvals from governmental authorities which are
material to operation of the business of Company and its subsidiaries taken as a
whole (collectively, the "Company Permits"). Company and its subsidiaries are in
compliance in all respects with the terms of the Company Permits, except where
failure to comply could not reasonably be expected to have a Material Adverse
Effect on the Company.
 
    2.7  SEC FILINGS; FINANCIAL STATEMENTS.
 
    2.7.1  Company has made available to Parent a correct and complete copy of
each report, schedule, registration statement and definitive proxy statement
filed by Company with the Securities and Exchange Commission ("SEC") since
January 1, 1996 (the "Company SEC Reports"), which are all the forms, reports
and documents required to be filed by Company with the SEC since January 1,
1996. The Company SEC Reports (A) were prepared in accordance with the
requirements of the Securities Act or the Exchange Act, as the case may be, and
(B) did not at the time they were filed (or if amended or superseded by a filing
prior to the date of this Agreement then on the date of such filing) contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they were made, not misleading. None of
Company's subsidiaries is required to file any reports or other documents with
the SEC.
 
    2.7.2  Each set of consolidated financial statements (including, in each
case, any related notes thereto) contained in the Company SEC Reports was
prepared in accordance with generally accepted accounting principles ("GAAP")
(including, without limitation, in accordance with the revenue recognition
principles thereof) applied on a consistent basis throughout the periods
involved (except as may be indicated in the notes thereto or, in the case of
unaudited statements, do not contain footnotes as permitted by Form 10-Q of the
Exchange Act) and each fairly presents the consolidated financial position of
Company and its subsidiaries as at the respective dates thereof and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited interim financial statements were or are subject to
normal adjustments which were not or are not expected to be material in amount.
 
    2.7.3  Company has previously furnished to Parent a complete and correct
copy of any amendments or modifications, which have not yet been filed with the
SEC but which are required to be filed, to agreements, documents or other
instruments which previously had been filed by Company with the SEC pursuant to
the Securities Act or the Exchange Act.
 
    2.8  NO UNDISCLOSED LIABILITIES.  Neither Company nor any of its
subsidiaries has any liabilities (absolute, accrued, contingent or otherwise) of
a nature required to be disclosed on a balance sheet or in the related notes to
the consolidated financial statements prepared in accordance with GAAP
(including, without limitation, in accordance with the revenue recognition
principles thereof) which are, individually or in the aggregate, material to the
business, results of operations or financial condition of Company and its
subsidiaries taken as a whole, except (i) liabilities provided for in Company's
balance sheet as of June 30, 1998, (ii) liabilities incurred since June 30, 1998
in the ordinary course of business consistent with past practices or (iii)
banking, accounting, legal and printing fees associated with the Merger.
 
    2.9  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Since June 30, 1998, there has
not been: (i) any Material Adverse Effect on Company, (ii) any declaration,
setting aside or payment of any dividend on, or other distribution (whether in
cash, stock or property) in respect of, any of Company's or any of its
subsidiaries' capital stock, or any purchase, redemption or other acquisition by
Company of any of Company's capital stock or any other securities of Company or
its subsidiaries or any options, warrants, calls or rights to acquire any such
shares or other securities except for repurchases from employees following their
termination pursuant to the terms of their pre-existing stock option or purchase
agreements, (iii) any split,
 
                                       8
<PAGE>
combination or reclassification of any of Company's or any of its subsidiaries'
capital stock, (iv) any granting by Company or any of its subsidiaries of any
increase in compensation or fringe benefits, except for normal increases of cash
compensation in the ordinary course of business consistent with past practice,
or any payment by Company or any of its subsidiaries of any bonus, except for
bonuses made in the ordinary course of business consistent with past practice,
or any granting by Company or any of its subsidiaries of any increase in
severance or termination pay or any entry by Company or any of its subsidiaries
into any currently effective employment, severance, termination or
indemnification agreement or any agreement the benefits of which are contingent
or the terms of which are materially altered upon the occurrence of a
transaction involving Company of the nature contemplated hereby, (v) entry by
Company or any of its subsidiaries into any licensing or other agreement with
regard to the acquisition or disposition of any material Intellectual Property
(as defined in Section 2.19) other than licenses in the ordinary course of
business consistent with past practice or any amendment or consent with respect
to any licensing agreement filed or required to be filed by Company with the
SEC, (vi) any material change by Company in its accounting methods, principles
or practices, except as required by concurrent changes in GAAP, or (vii) any
revaluation by Company of any of its assets, including, without limitation,
writing down the value of capitalized inventory or writing off notes or accounts
receivable other than in the ordinary course of business.
 
    2.10  ABSENCE OF LITIGATION.  There are no material claims, actions, suits
or proceedings pending or, to the knowledge of Company, threatened (or, to the
knowledge of Company, any governmental or regulatory investigation pending or
threatened) against Company or any of its subsidiaries as to which Company or
any of its subsidiaries has received any written notice or assertion, or any
properties or rights of Company or any of its subsidiaries, before any court,
arbitrator or administrative, governmental or regulatory authority or body,
domestic or foreign.
 
    2.11  EMPLOYEE BENEFIT PLANS
 
    2.11.1  All employee compensation, incentive, fringe or benefit plans,
programs, policies, commitments or other arrangements (whether or not set forth
in a written document and including, without limitation, all "employee benefit
plans" within the meaning of Section 3(3) of the Employee Retirement Income
Security Act of 1974, as amended ("ERISA")) covering any active, former
employee, director or consultant of Company, any subsidiary of Company or any
trade or business (whether or not incorporated) which is a member of a
controlled group or which is under common control with Company within the
meaning of Section 414 of the Code, or with respect to which Company has or may
in the future have liability, are listed in Section 2.11.1 of the Company
Disclosure Letter (the "Plans"). Company has provided to Parent: (i) correct and
complete copies of all documents embodying each Plan including (without
limitation) all amendments thereto, all related trust documents, and all
material written agreements and contracts relating to each such Plan; (ii) the
three (3) most recent annual reports (Form Series 5500 and all schedules and
financial statements attached thereto), if any, required under ERISA or the Code
in connection with each Plan; (iii) the most recent summary plan description
together with the summary(ies) of material modifications thereto, if any,
required under ERISA with respect to each Plan; (iv) all IRS determination,
opinion, notification and advisory letters; (vi) all correspondence to or from
any governmental agency relating to any Plan; (vii) all COBRA forms and related
notices and (viii) all discrimination tests for each Plan for the most recent
plan year.
 
    2.11.2  Each Plan has been maintained and administered in all material
respects in compliance with its terms and with the requirements prescribed by
any and all statutes, orders, rules and regulations (foreign or domestic),
including but not limited to ERISA, and the Code, which are applicable to such
Plans. No suit, action or other litigation (excluding claims for benefits
incurred in the ordinary course of Plan activities) has been brought, or to the
best knowledge of Company is threatened, against or with respect to any such
Plan. All contributions, reserves or premium payments required to be made or
accrued as of the date hereof to the Plans have been timely made or accrued.
Section 2.11.2 of the Company Disclosure Letter includes a listing of the
accrued vacation liability of Company as of October 1, 1998. Any
 
                                       9
<PAGE>
Plan intended to be qualified under Section 401(a) of the Code and each trust
intended to qualify under Section 501(a) of the Code (i) has either obtained a
favorable determination, notification, advisory and/or opinion letter, as
applicable, as to its qualified status from the Internal Revenue Service or
still has a remaining period of time under applicable Treasury Regulations or
Internal Revenue Service pronouncements in which to apply for such letter and to
make any amendments necessary to obtain a favorable determination, and (ii)
incorporates or has been amended to incorporate all provisions required to
comply with the Tax Reform Act of 1986 and subsequent legislation. Company has
furnished or made available to Parent copies of the most recent Internal Revenue
Service letters and three (3) years of Form 5500 with respect to any such Plan.
Company does not have any plan or commitment to establish any new Plan, to
modify any Plan (except to the extent required by law or to conform any such
Plan to the requirements of any applicable law, in each case as previously
disclosed to Parent in writing, or as required by this Agreement), or to enter
into any new Plan. Except as provided in Section 5.8(e), each Plan can be
amended, terminated or otherwise discontinued after the Effective Time in
accordance with its terms, without liability to the Parent, Company or any of
its Affiliates (other than ordinary administration expenses).
 
    2.11.3  Neither Company nor any Affiliate has at any time ever maintained,
established, sponsored, participated in, or contributed to any plan subject to
Title IV of ERISA or Section 412 of the Code and at no time has Company
contributed to or been requested to contribute to any "multiemployer plan," as
such term is defined in ERISA. Neither Company nor any officer or director of
Company is subject to any liability or penalty under Section 4975 through 4980B
of the Code or Title 1 of ERISA. There are no audits, inquiries or proceedings
pending or, to the knowledge of Company, threatened by the IRS or DOL with
respect to any Company Employee Plan. No "prohibited transaction," within the
meaning of Section 4975 of the Code or Sections 406 and 407 of ERISA, and not
otherwise exempt under Section 408 of ERISA, has occurred with respect to any
Company Employee Plan.
 
    2.11.4  Neither Company nor any Affiliate has, prior to the Effective Time
and in any material respect, violated any of the health care continuation
requirements of the Consolidated Omnibus Budget Reconciliation Act of 1985, as
amended ("COBRA"), the requirements of FMLA or any similar provisions of state
law applicable to Company employees. None of the Plans promises or provides
retiree medical or other retiree welfare benefits to any person except as
required by applicable law, including but not limited to, COBRA, and Company has
never represented, promised or contracted (whether in oral or written form) to
provide such retiree benefits to any employee, former employee, director,
consultant or other person, except to the extent required by statute.
 
    2.11.5  Company is not bound by or subject to (and none of its respective
assets or properties is bound by or subject to) any arrangement with any labor
union. No employee of Company is represented by any labor union or covered by
any collective bargaining agreement and, to the best knowledge of Company, no
campaign to establish such representation is in progress. There is no pending
or, to the best knowledge of Company, threatened labor dispute involving Company
and any group of its employees nor has Company experienced any labor
interruptions over the past three years, and Company considers its relationship
with its employees to be good. Company is in compliance in all material respects
with all applicable material foreign, federal, state and local laws, rules and
regulations respecting employment, employment practices, terms and conditions of
employment and wages and hours.
 
    2.11.6  Neither the execution and delivery of this Agreement nor the
consummation of the transactions contemplated hereby will (i) result in any
payment (including severance, unemployment compensation, golden parachute, bonus
or otherwise) becoming due to any stockholder, director or employee of Company
under any Plan or otherwise, (ii) materially increase any benefits otherwise
payable under any Plan, or (iii) result in the acceleration of the time of
payment or vesting of any such benefits.
 
                                       10
<PAGE>
    2.12  LABOR MATTERS.  (i) There is no litigation pending or, to the
knowledge of each of Company and its respective subsidiaries, threatened,
between Company or any of its subsidiaries and any of their respective
employees; (ii) as of the date of this Agreement, neither Company nor any of
subsidiaries is a party to any collective bargaining agreement or other labor
union contract applicable to persons employed by Company or its subsidiaries nor
does Company or its subsidiaries know of any activities or proceedings of any
labor union to organize any such employees; and (iii) as of the date of this
Agreement, neither Company nor any of its subsidiaries has any knowledge of any
strikes, slowdowns, work stoppages or lockouts, or threats thereof, by or with
respect to any employees of Company or any of its subsidiaries.
 
    2.13  REGISTRATION STATEMENT; PROXY STATEMENT.  None of the information
supplied or to be supplied by Company for inclusion or incorporation by
reference in (i) the registration statement on Form S-4 to be filed with the SEC
by Parent in connection with the issuance of the Parent Common Stock in or as a
result of the Merger (the "S-4") will, at the time the S-4 becomes effective
under the Securities Act, contain any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they are made, not misleading; and (ii) the Proxy Statement/Prospectus (the
"Proxy Statement/Prospectus") to be filed with the SEC by Company pursuant to
Section 5.1(a) hereof will, at the dates mailed to the stockholders of Company,
at the times of the stockholders meeting of Company (the "Company Stockholders'
Meeting") in connection with the transactions contemplated hereby and as of the
Effective Time, contain any untrue statement of a material fact or omit to state
any material fact required to be stated therein or necessary in order to make
the statements therein, in light of the circumstances under which they are made,
not misleading. The Proxy Statement/Prospectus will comply as to form in all
material respects with the provisions of the Exchange Act and the rules and
regulations promulgated by the SEC thereunder.
 
    2.14  RESTRICTIONS ON BUSINESS ACTIVITIES.  There is no material agreement,
judgment, injunction, order or decree binding upon Company or any of its
subsidiaries which has or could reasonably be expected to have the effect of
prohibiting or materially impairing any business practice of Company or any of
its subsidiaries, any acquisition of property by Company or any of its
subsidiaries or the conduct of business by Company or any of its subsidiaries as
currently conducted.
 
    2.15  TITLE TO PROPERTY.  Company owns no material real property. Company
and each of its subsidiaries have good and defensible title to all of their
material properties and assets, free and clear of all liens, charges and
encumbrances except liens for taxes not yet due and payable and such liens or
other imperfections of title, if any, as do not materially detract from the
value of or interfere with the present use of the property affected thereby; and
all leases pursuant to which Company or any of its subsidiaries lease from
others material amounts of real or personal property are in good standing, valid
and effective in accordance with their respective terms, and there is not, under
any of such leases, any existing material default or event of default (or any
event which with notice or lapse of time, or both, would constitute a material
default and in respect of which Company or subsidiary has not taken adequate
steps to prevent such default from occurring). All the plants, structures and
equipment of Company and its subsidiaries, except such as may be under
construction, are in good operating condition and repair, in all material
respects. For the purposes of this Section 2.15, the word "property" or
"properties" does not include Intellectual Property.
 
    2.16  TAXES.  Company and each of its subsidiaries, and any consolidated,
combined, unitary or aggregate group for Tax purposes of which Company or any of
its subsidiaries is or has been a member has timely filed all Tax Returns
required to be filed by it (other than those that are not, individually or in
the aggregate, material), has paid all Taxes shown thereon to be due and has
provided adequate accruals in all material respects in accordance with GAAP in
its financial statements for any Taxes that have not been paid, whether or not
shown as being due on any returns. In addition, (i) no material claim for unpaid
Taxes that are currently, or will be prior to the Effective Time, due and
payable has become a lien against the property of Company or any of its
subsidiaries or is being asserted against Company or any of its
 
                                       11
<PAGE>
subsidiaries, (ii) no audit of any material Tax Return of Company or any of its
subsidiaries is being conducted by a Tax authority, (iii) no extension of the
statute of limitations on the assessment of any Taxes has been granted by
Company or any of its subsidiaries and is currently in effect and (iv) there is
no agreement, contract or arrangement to which Company or any of its
subsidiaries is a party that may result in the payment of any amount that would
not be deductible pursuant to Sections 280G, 162(a) (by reason of being
unreasonable in amount), 162(b) through (p) or 404 of the Code. As used herein,
"Taxes" shall mean all taxes of any kind, including, without limitation, those
on or measured by or referred to as income, gross receipts, sales, use, ad
valorem, franchise, profits, license, withholding, payroll, employment, excise,
severance, stamp, occupation, premium, value added, property or windfall profits
taxes, customs, duties or similar fees, assessments or charges of any kind
whatsoever, together with any interest and any penalties, additions to tax or
additional amounts imposed by any governmental authority, domestic or foreign.
As used herein, "Tax Return" shall mean any return, report or statement required
to be filed with any governmental authority with respect to Taxes.
 
    2.17  ENVIRONMENTAL MATTERS.  Company and each of its subsidiaries to their
respective knowledge (i) have obtained all applicable permits, licenses and
other authorizations which are material to the business of Company and required
under Federal, state or local laws relating to pollution or protection of the
environment, including laws relating to emissions, discharges, releases or
threatened releases of pollutants, contaminants, or hazardous or toxic materials
or wastes into ambient air, surface water, ground water, or land or otherwise
relating to the manufacture, processing, distribution, use, treatment, storage,
disposal, transport, or handling of pollutants, contaminants or hazardous or
toxic materials or wastes by Company or its subsidiaries (or their respective
agents); (ii) are in material compliance with all terms and conditions of such
required permits, licenses and authorizations, and also are in compliance with
all other limitations, restrictions, conditions, standards, prohibitions,
requirements, obligations, schedules and timetables contained in such laws or
contained in any regulation, code, plan, order, decree, judgment, notice or
demand letter issued, entered, promulgated or approved thereunder; (iii) as of
the date hereof, are not aware of nor have received notice of any event,
condition, circumstance, activity, practice, incident, action or plan which is
reasonably likely to interfere with or prevent continued material compliance or
which would give rise to any material common law or statutory liability, or
otherwise form the basis of any claim, action, suit or proceeding, based on or
resulting from Company's or any of its subsidiaries (or any of their respective
agents) manufacture, processing, distribution, use, treatment, storage,
disposal, transport, or handling, or the emission, discharge, or release into
the environment, of any pollutant, contaminant, or hazardous or toxic material
or waste; and (iv) have taken all actions necessary under applicable
requirements of Federal, state or local laws, rules or regulations to register
any products or materials required to be registered by Company or its
subsidiaries (or any of their respective agents) thereunder.
 
    2.18  BROKERS.  No broker, finder or investment banker (other than Morgan
Stanley & Co., Incorporated) is entitled to any brokerage, finder's or other fee
or commission in connection with the transactions contemplated by this Agreement
based upon arrangements made by or on behalf of Company.
 
    2.19  INTELLECTUAL PROPERTY.  For the purposes of this Agreement, the
following terms have the following definitions:
 
        "INTELLECTUAL PROPERTY" shall mean any or all of the following and all
        rights in, arising out of, or associated therewith: (i) all United
        States, international and foreign patents and applications therefor and
        all reissues, divisions, renewals, extensions, provisionals,
        continuations and continuations-in-part thereof; (ii) all inventions
        (whether patentable or not), invention disclosures, improvements, trade
        secrets, proprietary information, know how, technology, technical data
        and customer lists, and all documentation relating to any of the
        foregoing; (iii) all copyrights, copyrights registrations and
        applications therefor, and all other rights corresponding thereto
        throughout the world; (iv) all industrial designs and any registrations
        and applications therefor throughout the world; (v) all trade names,
        logos, common law trademarks and service marks, trademark and service
        mark registrations and applications therefor throughout the world; (vi)
        all
 
                                       12
<PAGE>
        databases and data collections and all rights therein throughout the
        world; (vii) all moral and economic rights of authors and inventors,
        however denominated, throughout the world, and (viii) any similar or
        equivalent rights to any of the foregoing anywhere in the world.
 
        "COMPANY INTELLECTUAL PROPERTY" shall mean any Intellectual Property
        that is owned by, or exclusively licensed to, Company.
 
        "REGISTERED INTELLECTUAL PROPERTY" means all United States,
        international and foreign: (i) patents and patent applications
        (including provisional applications); (ii) registered trademarks,
        applications to register trademarks, intent-to-use applications, or
        other registrations or applications related to trademarks; (iii)
        registered copyrights and applications for copyright registration; and
        (iv) any other Intellectual Property that is the subject of an
        application, certificate, filing, registration or other document issued,
        filed with, or recorded by any state, government or other public legal
        authority.
 
        "COMPANY REGISTERED INTELLECTUAL PROPERTY" means all of the Registered
        Intellectual Property owned by, or filed in the name of, Company.
 
    2.19.1  No material Company Intellectual Property or material product or
material service of Company is subject to any proceeding or outstanding decree,
order, judgment, agreement, or stipulation restricting in any manner the use,
transfer, or licensing thereof by Company, or which is reasonably likely to
affect the validity, use or enforceability of such Company Intellectual
Property.
 
    2.19.2  Each material item of Company Registered Intellectual Property is
valid and subsisting, all necessary registration, maintenance and renewal fees
currently due in connection with such Registered Intellectual Property have been
made and all necessary documents, recordations and certificates in connection
with such Registered Intellectual Property have been filed with the relevant
patent, copyright, trademark or other authorities in the United States or
foreign jurisdictions, as the case may be, for the purposes of maintaining such
Registered Intellectual Property.
 
    2.19.3  Company owns and has good and exclusive title to, or has license
(sufficient for the conduct of its business as currently conducted and as
proposed to be conducted) to, each material item of Company Intellectual
Property free and clear of any lien or encumbrance (excluding licenses and
related restrictions); and Company is the exclusive owner of all trademarks and
trade names used in connection with the operation or conduct of the business of
Company, including the sale of any products or the provision of any services by
Company.
 
    2.19.4  Company owns exclusively, and has good title to, all copyrighted
works that are Company products or which Company otherwise expressly purports to
own.
 
    2.19.5  To the extent that any material Intellectual Property has been
developed or created by a third party for Company, Company has a written
agreement with such third party with respect thereto and Company thereby either
(i) has obtained ownership of, and is the exclusive owner of, or (ii) has
obtained a license (sufficient for the conduct of its business as currently
conducted) to all such third party's Intellectual Property in such work,
material or invention to the extent it is necessary to do so.
 
    2.19.6  Company has not transferred ownership of, or granted any exclusive
license with respect to, any Intellectual Property that is or was material
Company Intellectual Property, to any third party.
 
    2.19.7  Section 2.19.7 of the Company Disclosure Letter lists all material
contracts, licenses and agreements to which Company is a party (i) with respect
to Company Intellectual Property licensed or transferred to any third party
(other than end-user licenses in the ordinary course); or (ii) pursuant to which
a third party has licensed or transferred any material Intellectual Property to
Company.
 
    2.19.8  All material contracts, licenses and agreements relating to Company
Intellectual Property (other than those that, by their terms, have expired or
been terminated) are in full force and effect. The
 
                                       13
<PAGE>
consummation of the transactions contemplated by this Agreement will neither
violate nor result in the breach, modification, cancellation, termination, or
suspension of such contracts, licenses and agreements. Company is in material
compliance with, and has not materially breached any term of any such contracts,
licenses and agreements and, to the knowledge of Company, all other parties to
such contracts, licenses and agreements are in compliance with, and have not
materially breached any term of, such contracts, licenses and agreements.
Following the Closing Date, the Surviving Corporation will be permitted to
exercise all of Company's rights under such contracts, licenses and agreements
to the same extent Company would have been able to had the transactions
contemplated by this Agreement not occurred and without the payment of any
additional amounts or consideration other than ongoing fees, royalties or
payments which Company would otherwise be required to pay.
 
    2.19.9  The operation of the business of Company as such business currently
is conducted, including the Company's design, development, manufacture,
marketing and sale of the products or services of Company (including products
currently in beta release) has not, does not and, to the Company's knowledge,
will not infringe or misappropriate the Intellectual Property of any third party
(provided that with respect to patent rights and trademarks and service mark
rights, such representation is limited in all cases to the Company's knowledge)
or, to its knowledge, constitute unfair competition or trade practices under the
laws of any jurisdiction.
 
    2.19.10  Company has not received notice from any third party that the
operation of the business of Company or any act, product or service of Company,
infringes or misappropriates the Intellectual Property of any third party or
constitutes unfair competition or trade practices under the laws of any
jurisdiction.
 
    2.19.11  To the best knowledge of Company, no person has or is infringing or
misappropriating any Company Intellectual Property.
 
    2.19.12  Company has taken reasonable steps to protect Company's rights in
Company's confidential information and trade secrets that it wishes to protect
or any trade secrets or confidential information of third parties provided to
Company, and, without limiting the foregoing, Company has and enforces a policy
requiring each employee and contractor to execute a proprietary
information/confidentiality agreement substantially in the form provided to
Parent (or a form providing substantially the same protection) and all current
and former employees and contractors of Company have executed such an agreement,
except where the failure to do so is not reasonably expected to be material to
Company.
 
    2.20  AGREEMENTS, CONTRACTS AND COMMITMENTS.  Neither Company nor any of its
subsidiaries is a party to or is bound by:
 
    2.20.1  any employment or consulting agreement, contract or commitment with
any officer, director or member of Company's Board of Directors, other than
those that are terminable by Company or any of its subsidiaries on no more than
thirty days notice and which do so with no express (whether by contract or by
policy) liability or financial obligation to the Company;
 
    2.20.2  any agreement or plan, including, without limitation, any stock
option plan, stock appreciation right plan or stock purchase plan, any of the
benefits of which will be increased, or the vesting of benefits of which will be
accelerated, by the occurrence of any of the transactions contemplated by this
Agreement or the value of any of the benefits of which will be calculated on the
basis of any of the transactions contemplated by this Agreement;
 
    2.20.3  any agreement of indemnification or any guaranty currently in force
other than any agreement of indemnification entered into in connection with the
sale or license or distribution or marketing of software products or services in
the ordinary course of business;
 
    2.20.4  any agreement, contract or commitment containing any covenant
limiting in any respect the right of Company or any of its subsidiaries to
engage in any line of business or to compete with any person or granting any
exclusive distribution rights;
 
                                       14
<PAGE>
    2.20.5  any agreement, contract or commitment currently in force relating to
the disposition or acquisition by Company or any of its subsidiaries after the
date of this Agreement of a material amount of assets not in the ordinary course
of business or pursuant to which Company has any material ownership interest in
any corporation, partnership, joint venture or other business enterprise other
than Company's subsidiaries;
 
    2.20.6  any material joint marketing or development agreement currently in
force under which Company or any of its subsidiaries have continuing material
obligations to jointly market any product, technology or service and which may
not be canceled without penalty upon notice of 90 days or less, or any material
agreement pursuant to which Company or any of its subsidiaries have continuing
material obligations to jointly develop any intellectual property that will not
be owned, in whole or in part, by Company or any of its subsidiaries and which
may not be canceled without penalty upon notice of 90 days or less;
 
    2.20.7  any agreement, contract or commitment currently in force to provide
source code to any third party for any product or technology that is material to
Company and its subsidiaries taken as a whole; or
 
    2.20.8  any agreement, contract or commitment currently in force to license
any third party to manufacture or reproduce any Company product, service or
technology except as a distributor in the normal course of business.
 
    Neither Company nor any of its subsidiaries, nor to Company's knowledge any
other party to a Company Contract (as defined below), is in breach, violation or
default under, and neither Company nor any of its subsidiaries has received
written notice that it has breached, violated or defaulted under, any of the
material terms or conditions of any of the agreements, contracts or commitments
to which Company or any of its subsidiaries is a party or by which it is bound
that are required to be disclosed in the Company Disclosure Letter pursuant to
this Section 2.20 hereof (any such agreement, contract or commitment, a "Company
Contract") in such a manner as would permit any other party to cancel or
terminate any such Company Contract, or would permit any other party to seek
material damages or other remedies (for any or all of such breaches, violations
or defaults, in the aggregate).
 
    2.21  COMPANY RIGHTS PLAN.  The Company Rights Plan has been amended to (i)
render the Company Rights Plan inapplicable to the Merger and the other
transactions contemplated by this Agreement, the Company Stock Option Agreement,
the Company Affiliate Agreements and the Company Voting Agreements, (ii) ensure
that (y) neither Parent nor Merger Sub, nor any of their affiliates shall be
deemed to have become an Acquiring Person (as defined in the Company Rights
Plan) pursuant to the Company Rights Plan solely by virtue of the execution of
this Agreement, the Company Stock Option Agreement, the Company Affiliate
Agreements and the Company Voting Agreements of the consummation of the
transactions contemplated hereby or thereby and (z) a Distribution Date, a
Section 11(a)(ii) Trigger Date or a Shares Acquisition Date (as such terms are
defined in the Company Rights Plan) or similar event does not occur by reason of
the execution of this Agreement, the Company Stock Option Agreement, the Company
Affiliate Agreements and the Company Voting Agreements, the consummation of the
Merger, or the consummation of the other transactions, contemplated hereby and
thereby, (iii) provide that the exercise of rights under the Company Rights Plan
shall expire immediately prior to the Effective Time, and (iv) that such
amendment may not be further amended by the Company without the prior consent of
Parent in its sole discretion.
 
    2.22  INSURANCE.  Company maintains insurance policies and fidelity bonds
covering the assets, business, equipment, properties, operations, employees,
officers and directors of Company and its subsidiaries (collectively, the
"Insurance Policies") which are of the type and in amounts customarily carried
by persons conducting businesses similar to those of Company and its
subsidiaries. There is no material claim by Company or any of its subsidiaries
pending under any of the material Insurance Policies as to which coverage has
been questioned, denied or disputed by the underwriters of such policies or
bonds.
 
                                       15
<PAGE>
    2.23  OPINION OF FINANCIAL ADVISOR.  Company has been advised in writing by
its financial advisor, Morgan Stanley & Co., Incorporated, that in its opinion,
as of the date of this Agreement, the Exchange Ratio is fair to the stockholders
of Company from a financial point of view.
 
    2.24  BOARD APPROVAL.  The Board of Directors of Company has, as of the date
of this Agreement (i) approved, subject to stockholder approval, this Agreement
and the Company Option Agreement and the transactions contemplated hereby and
thereby, (ii) determined that the Merger is in the best interests of the
stockholders of Company and is on terms that are fair to such stockholders and
(iii) recommended that the stockholders of Company approve this Agreement and
the Merger.
 
    2.25  VOTE REQUIRED.  The affirmative vote of a majority of the votes that
holders of the outstanding shares of Company Common Stock are entitled to vote
thereon is the only vote of the holders of any class or series of Company's
capital stock necessary to approve this Agreement and the transactions
contemplated hereby.
 
    2.26  STATE TAKEOVER STATUTES.  The Board of Directors of the Company has
approved the Merger, this Agreement, the Company Stock Option Agreement, the
Company Affiliate Agreements and the Company Voting Agreements, and such
approval is sufficient to render inapplicable to the Merger, this Agreement, the
Company Stock Option Agreement, the Company Affiliate Agreements and the Company
Voting Agreements and the transactions contemplated by this Agreement, the
Company Stock Option Agreement, the Company Affiliate Agreements and the Company
Voting Agreements, the provisions of Section 203 of the Delaware General
Corporation Law to the extent, if any, such Section is applicable to the Merger,
this Agreement, the Company Stock Option Agreement, the Company Affiliate
Agreements and the Company Voting Agreements and the transactions contemplated
by this Agreement, the Company Stock Option Agreement, the Company Affiliate
Agreements and the Company Voting Agreements (assuming that Parent and its
"affiliates" and "associates" (as defined under both Section 203 of the Delaware
Statute and Rule 405 under the Securities Act), collectively beneficially own
and have beneficially owned at all times during the three-year period prior to
the date hereof less than 1% of the shares of Company Common Stock outstanding,
other than shares of Company Common Stock issuable pursuant to the Company
Option Agreement to be entered into concurrently herewith). To the Company's
knowledge after consultation with the Company's outside counsel, no other state
takeover statute or similar statute or regulation applies to or purports to
apply to the Merger, this Agreement, the Company Stock Option Agreement, the
Company Affiliate Agreements and the Company Voting Agreements or the
transactions contemplated by this Agreement, the Company Stock Option Agreement,
the Company Affiliate Agreements and the Company Voting Agreements.
 
                                  ARTICLE III
            REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB
 
    Parent and Merger Sub jointly and severally represent and warrant to
Company, subject to such exceptions as are set forth in the Parent SEC Reports
(as defined in Section 3.6 or specifically disclosed in the disclosure letter
(referencing the appropriate section and paragraph number) delivered by Parent
and Sub to Company on or prior to the date of this Agreement (the "Parent
Disclosure Letter"), as follows:
 
    3.1  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.  Each of Parent and its
subsidiaries is a corporation duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation and has the
requisite corporate power and authority to own, lease and operate its assets and
properties and to carry on its business as it is now being conducted. Each of
Parent and its subsidiaries is in possession of all Approvals necessary to own,
lease and operate the properties it purports to own, operate or lease and to
carry on its business as it is now being conducted, except where the failure to
have such Approvals would not, individually or in the aggregate, have a Material
Adverse Effect on Parent. Each of Parent and its subsidiaries is duly qualified
or licensed as a foreign corporation to do business, and is in good standing, in
each jurisdiction where the character of the properties owned, leased or
operated by it or the nature of its
 
                                       16
<PAGE>
activities makes such qualification or licensing necessary, except for such
failures to be so duly qualified or licensed and in good standing that would
not, either individually or in the aggregate, have a Material Adverse Effect on
Parent.
 
    3.2  CERTIFICATE OF INCORPORATION AND BYLAWS.  Parent has previously
furnished to Company a complete and correct copy of its Certificate of
Incorporation and Bylaws as amended to date. Such Certificate of Incorporation,
Bylaws and equivalent organizational documents of each of its subsidiaries are
in full force and effect. Neither Parent nor any of its subsidiaries is in
violation of any of the provisions of its Certificate of Incorporation or Bylaws
or equivalent organizational documents.
 
    3.3  CAPITALIZATION.  The authorized capital stock of Parent consists of (i)
500,000,000 shares of Parent Common Stock and of (ii) 5,000,000 shares of
Preferred Stock, par value $.01 per share ("Parent Preferred Stock"), 440,000 of
which have been designated as Series A-1 Preferred Stock and 80,000 of which
have been designated as Series B Preferred Stock. At the close of business on
September 30, 1998 (i) 172,310,746 shares of Parent Common Stock were issued and
outstanding, all of which are validly issued, fully paid and nonassessable, (ii)
248,975 shares of Parent Common Stock were held in treasury by Parent or by
subsidiaries of Parent, (iii) 2,837,759 shares of Parent Common Stock were
reserved for future issuance pursuant to Parent's employee stock purchase plan,
(iv) 18,140,543 shares of Parent Common Stock were reserved for issuance upon
the exercise of outstanding options ("Parent Options") to purchase Parent Common
Stock. As of the date hereof, no shares of Series A-1 Preferred Stock and 32,000
shares of Series B Preferred Stock were issued or outstanding. A warrant to
purchase 80,000 shares of Series A-1 Preferred Stock and warrants to purchase an
aggregate of 951,891 shares of Parent Common Stock, associated with the exercise
of Series B Preferred Stock, were outstanding as of the date hereof. The
authorized capital stock of Merger Sub consists of 1,000 shares of common stock,
par value $0.001 per share, all of which, as of the date hereof, are issued and
outstanding. All of the outstanding shares of Parent's and Merger Sub's
respective capital stock have been duly authorized and validly issued and are
fully paid and nonassessable. All shares of Parent Common Stock subject to
issuance as aforesaid, upon issuance on the terms and conditions specified in
the instruments pursuant to which they are issuable, shall, and the shares of
Parent Common Stock to be issued pursuant to the Merger will be, duly
authorized, validly issued, fully paid and nonassessable. All of the outstanding
shares of capital stock (other than directors' qualifying shares) of each of
Parent's subsidiaries is duly authorized, validly issued, fully paid and
nonassessable and all such shares (other than directors' qualifying shares) are
owned by Parent or another subsidiary free and clear of all security interests,
liens, claims, pledges, agreements, limitations in Parent's voting rights,
charges or other encumbrances of any nature whatsoever.
 
    3.4  AUTHORITY RELATIVE TO THIS AGREEMENT.  Each of Parent and Merger Sub
has all necessary corporate power and authority to execute and deliver this
Agreement and the Company Option Agreement, and to perform its obligations
hereunder and thereunder, subject to obtaining the approval of Parent's
stockholders of the issuance of Parent Common Stock in the Merger, to consummate
the transactions contemplated hereby and thereby. The execution and delivery of
this Agreement and the Company Option Agreement by Parent and Merger Sub and the
consummation by Parent and Merger Sub of the transactions contemplated hereby
and thereby have been duly and validly authorized by all necessary corporate
action on the part of Parent and Merger Sub and no other corporate proceedings
on the part of Parent or Merger Sub are necessary to authorize this Agreement
and the Company Option Agreement, or to consummate the transactions so
contemplated. This Agreement and the Company Option Agreement have been duly and
validly executed and delivered by Parent and Merger Sub and, assuming the due
authorization, execution and delivery by Company, constitute legal and binding
obligations of Parent and Merger Sub, enforceable against Parent and Merger Sub
in accordance with their respective terms.
 
    3.5  NO CONFLICT; REQUIRED FILINGS AND CONSENTS.
 
        3.5.1  The execution and delivery of this Agreement by Parent and Merger
    Sub and the Company Option Agreement by Parent do not, and the performance
    of this Agreement by Parent and
 
                                       17
<PAGE>
    Merger Sub and the Company Option Agreement by Parent shall not, (i)
    conflict with or violate the Certificate of Incorporation, Bylaws or
    equivalent organizational documents of Parent or any of its subsidiaries,
    (ii) subject to compliance with the requirements set forth in Section 3.5.2
    below, conflict with or violate any law, rule, regulation, order, judgment
    or decree applicable to Parent or any of its subsidiaries or by which it or
    their respective properties are bound or affected, or (iii) result in any
    breach of or constitute a default (or an event that with notice or lapse of
    time or both would become a default) under, or impair Parent's or any such
    subsidiary's rights or alter the rights or obligations of any third party
    under, or give to others any rights of termination, amendment, acceleration
    or cancellation of, or result in the creation of a lien or encumbrance on
    any of the properties or assets of Parent or any of its subsidiaries
    pursuant to, any material note, bond, mortgage, indenture, contract,
    agreement, lease, license, permit, franchise or other instrument or
    obligation to which Parent or any of its subsidiaries is a party or by which
    Parent or any of its subsidiaries or its or any of their respective
    properties are bound or affected.
 
        3.5.2  The execution and delivery of this Agreement by Parent and Merger
    Sub and the Company Option Agreement by Parent do not, and the performance
    of this Agreement by Parent and Merger Sub shall not, require any consent,
    approval, authorization or permit of, or filing with or notification to, any
    Governmental Entity except (i) for applicable requirements, if any, of the
    Securities Act, the Exchange Act, Blue Sky Laws, the pre-merger notification
    requirements of the HSR Act and of foreign governmental entities and the
    rules and regulations thereunder, the rules and regulations of the Nasdaq
    Stock Market, and the filing and recordation of the Certificate or Merger as
    required by the Delaware General Corporation Law and (ii) where the failure
    to obtain such consents, approvals, authorizations or permits, or to make
    such filings or notifications, (i) would not prevent consummation of the
    Merger or otherwise prevent Parent or Sub from performing their respective
    obligations under this Agreement or (ii) could not, individually or in the
    aggregate, reasonably be expected to have a Material Adverse Effect on
    Parent.
 
    3.6  SEC FILINGS; FINANCIAL STATEMENTS.
 
        3.6.1  Parent has made available to Company a correct and complete copy
    of each report, schedule, registration statement and definitive proxy
    statement filed by Parent with the SEC on or after January 1, 1997 and prior
    to the date of this Agreement (the "Parent SEC Reports"), which are all the
    forms, reports and documents required to be filed by Parent with the SEC
    since January 1, 1997. The Parent SEC Reports (A) were prepared in
    accordance with the requirements of the Securities Act or the Exchange Act,
    as the case may be, and (B) did not at the time they were filed (or if
    amended or superseded by a filing prior to the date of this Agreement then
    on the date of such filing) contain any untrue statement of a material fact
    or omit to state a material fact required to be stated therein or necessary
    in order to make the statements therein, in light of the circumstances under
    which they were made, not misleading. None of Parent's subsidiaries is
    required to file any reports or other documents with the SEC.
 
        3.6.2  Each set of consolidated financial statements (including, in each
    case, any related notes thereto) contained in the Parent SEC Reports was
    prepared in accordance with GAAP (including, without limitation, in
    accordance with the revenue recognition provisions thereof) applied on a
    consistent basis throughout the periods involved (except as may be indicated
    in the notes thereto or, in the case of unaudited statements, do not contain
    footnotes as permitted by Form 10-Q of the Exchange Act) and each fairly
    presents the consolidated financial position of Parent and its subsidiaries
    as at the respective dates thereof and the consolidated results of its
    operations and cash flows for the periods indicated, except that the
    unaudited interim financial statements were or are subject to normal
    adjustments which were not or are not expected to be material in amount.
 
        3.6.3  Parent has previously furnished to Company a complete and correct
    copy of any amendments or modifications, which have not yet been filed with
    the SEC but which are required to be filed,
 
                                       18
<PAGE>
    to agreements, documents or other instruments which previously had been
    filed by Parent with the SEC pursuant to the Securities Act or the Exchange
    Act.
 
        3.6.4  Parent has filed all the reports required to be filed under the
    Exchange Act during the preceding twelve months.
 
    3.7  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Since June 30, 1998, Parent and
its subsidiaries have conducted their businesses only in the ordinary course and
in a manner consistent with past practice and, since such date, there has not
been (i) any Material Adverse Effect on Parent or (ii) any material change by
Parent in its accounting methods, principles or practices except as required by
concurrent changes in GAAP.
 
    3.8  ABSENCE OF LITIGATION.  Except as set forth in the Parent SEC Reports,
there are no material claims, actions, suits or proceedings pending or, to the
knowledge of Parent, threatened (or to the knowledge of Parent, any governmental
or regulatory investigation pending or threatened) against Parent or any of its
subsidiaries as to which Parent or any of its subsidiaries has received any
written notice or assertion, or any properties or rights of Parent or any of its
subsidiaries, before any court, arbitrator or administrative, governmental or
regulatory authority or body, domestic or foreign.
 
    3.9  REGISTRATION STATEMENT; PROXY STATEMENT.  None of the information
supplied or to be supplied by Parent for inclusion or incorporation by reference
in (i) the S-4 will, at the time the S-4 becomes effective under the Securities
Act, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they are made, not
misleading; and (ii) the Proxy Statement/Prospectus will, at the dates mailed to
the stockholders of Company, at the time of the Company Stockholders Meeting and
as of the Effective Time, contain any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they are made, not misleading. The S-4 will comply as to form in all material
respects with the provisions of the Securities Act and the rules and regulations
promulgated by the SEC thereunder.
 
    3.10  BOARD APPROVAL.  The Board of Directors of Parent has, as of the date
hereof, (i) approved this Agreement, the Merger Agreement, the Company Option
Agreement and the transactions contemplated hereby and thereby and (ii)
determined that the Merger is in the best interests of the stockholders of
Parent and is on terms that are fair to such stockholders.
 
    3.11  INTERIM OPERATIONS OF MERGER SUB.  Merger Sub was formed solely for
the purpose of engaging in the transactions contemplated hereby, has engaged in
no other business activities and has conducted its operations only as
contemplated hereby.
 
    3.12  PARENT OWNERSHIP OF COMPANY COMMON STOCK.  Parent and, to the best
knowledge of Parent, its "affiliates" and "associates" (as defined under both
Section 203 of the Delaware Statute and Rule 405 under the Securities Act),
collectively beneficially own and have beneficially owned at all times during
the three-year period prior to the date hereof less than 1% of the shares of
Company Common Stock outstanding (other than shares of Company Common Stock
issuable pursuant to the Company Option Agreement to be entered into
concurrently herewith).
 
                                   ARTICLE IV
                      CONDUCT PRIOR TO THE EFFECTIVE TIME
 
    4.1  CONDUCT OF BUSINESS BY COMPANY.  During the period from the date of
this Agreement and continuing until the earlier of the termination of this
Agreement pursuant to its terms or the Effective Time, Company and each of its
subsidiaries shall, except to the extent that Parent shall otherwise consent in
writing, carry on its business, in all material respects, in the usual, regular
and ordinary course, in substantially the same manner as heretofore conducted
and in compliance with all applicable laws and
 
                                       19
<PAGE>
regulations, pay its debts and taxes when due subject to good faith disputes
over such debts or taxes, pay or perform other material obligations when due,
and use its commercially reasonable efforts consistent with past practices and
policies to (i) preserve intact its present business organization, (ii) keep
available the services of its present officers and employees and (iii) preserve
its relationships with customers, suppliers, distributors, licensors, licensees,
and others with which it has business dealings.
 
    In addition, except as permitted by the terms of this Agreement, and except
as provided in Section 4.1 of the Company Disclosure Letter, without the prior
written consent of Parent, during the period from the date of this Agreement and
continuing until the earlier of the termination of this Agreement pursuant to
its terms or the Effective Time, Company shall not do any of the following and
shall not permit its subsidiaries to do any of the following:
 
        (a) Waive any stock repurchase rights, accelerate, amend or change the
    period of exercisability of options or restricted stock, or reprice options
    granted under any employee, consultant, director or other stock plans or
    authorize cash payments in exchange for any options granted under any of
    such plans;
 
        (b) Grant any severance or termination pay to any officer or employee
    except pursuant to written agreements outstanding, or policies existing, on
    the date hereof and as previously disclosed in writing or made available to
    Parent, or adopt any new severance plan;
 
        (c) Transfer or license to any person or entity or otherwise extend,
    amend or modify in any material respect any rights to the Company
    Intellectual Property, or enter into grants to transfer or license to any
    person future patent rights, other than non-exclusive licenses in the
    ordinary course of business and consistent with past practice;
 
        (d) Declare, set aside or pay any dividends on or make any other
    distributions (whether in cash, stock, equity securities or property) in
    respect of any capital stock or split, combine or reclassify any capital
    stock or issue or authorize the issuance of any other securities in respect
    of, in lieu of or in substitution for any capital stock;
 
        (e) Purchase, redeem or otherwise acquire, directly or indirectly, any
    shares of capital stock of Company or its subsidiaries, except repurchases
    of unvested shares at cost in connection with the termination of the service
    relationship with any employee or consultant pursuant to stock option or
    purchase agreements in effect on the date hereof;
 
        (f) Issue, deliver, sell, authorize, pledge or otherwise encumber or
    propose any of the foregoing of, any shares of capital stock or any
    securities convertible into shares of capital stock, or subscriptions,
    rights, warrants or options to acquire any shares of capital stock or any
    securities convertible into shares of capital stock, or enter into other
    agreements or commitments of any character obligating it to issue any such
    shares or convertible securities, other than (x) the issuance delivery and/
    or sale of (i) shares of Company Common Stock pursuant to the exercise of
    stock options or warrants therefor outstanding as of the date of this
    Agreement, and (ii) shares of Company Common Stock issuable to participants
    in the ESPP consistent with the terms thereof and (y) the granting of stock
    options (and the issuance of Common Stock upon exercise thereof), in the
    ordinary course and consistent with past practices, in an amount not to
    exceed options to purchase (and the issuance of Common Stock upon exercise
    thereof) 60,000 shares in the aggregate;
 
        (g) Cause, permit or propose any amendments to its Certificate of
    Incorporation, Bylaws or other charter documents (or similar governing
    instruments of any of its subsidiaries);
 
        (h) Acquire or agree to acquire by merging or consolidating with, or by
    purchasing any equity interest in or a portion of the assets of, or by any
    other manner, any business or any corporation, partnership, association or
    other business organization or division thereof, or otherwise acquire or
 
                                       20
<PAGE>
    agree to acquire any assets which are material, individually or in the
    aggregate, to the business of Company or enter into any material joint
    ventures, strategic partnerships or alliances;
 
        (i) Sell, lease, license, encumber or otherwise dispose of any
    properties or assets which are material, individually or in the aggregate,
    to the business of Company, except sales or licenses of product or inventory
    in the ordinary course of business consistent with past practice;
 
        (j) Incur any indebtedness for borrowed money or guarantee any such
    indebtedness of another person, issue or sell any debt securities or
    options, warrants, calls or other rights to acquire any debt securities of
    Company, enter into any "keep well" or other agreement to maintain any
    financial statement condition or enter into any arrangement having the
    economic effect of any of the foregoing other than (i) in connection with
    the financing of ordinary course trade payables consistent with past
    practice or (ii) pursuant to existing credit facilities in the ordinary
    course of business;
 
        (k) Adopt or amend any employee benefit plan or employee stock purchase
    or employee stock option plan, or enter into any employment contract or
    collective bargaining agreement (other than offer letters and letter
    agreements entered into in the ordinary course of business consistent with
    past practice with employees who are terminable "at will,"), pay any special
    bonus or special remuneration to any director or employee, or increase the
    salaries or wage rates or fringe benefits (including rights to severance or
    indemnification) of its directors, officers, employees or consultants other
    than in the ordinary course of business, consistent with past practice, or
    change in any material respect any management policies or procedures;
 
        (l) Make any individual or series of related payments outside of the
    ordinary course of business in excess of $100,000, other than banking,
    accounting, legal and printing fees associated with the Merger;
 
        (m) except in the ordinary course of business, modify, amend or
    terminate any material contract or agreement to which Company or any
    subsidiary thereof is a party or waive, release or assign any material
    rights or claims thereunder;
 
        (n) enter into any contracts, agreements, or obligations relating to the
    distribution, sale, license or marketing by third parties of Company's
    products or products licensed by Company other than in the ordinary course
    of business consistent with past practice, but in no event shall Company
    enter into any exclusive distribution arrangement;
 
        (o) materially revalue any of its assets or, except as required by GAAP,
    make any change in accounting methods, principles or practices;
 
        (p) Engage in any action that could reasonably be expected to cause the
    Merger to fail to qualify as a "reorganization" under Section 368(a) of the
    Code;
 
        (q) Engage in any action with the intent to directly or indirectly
    adversely impact any of the transactions contemplated by this Agreement; or
 
        (r) Agree in writing or otherwise to take any of the actions described
    in Article 4 (a) through (q) above.
 
                                       21
<PAGE>
    4.2  CONDUCT OF BUSINESS BY PARENT.  During the period from the date of this
Agreement and continuing until the earlier of the termination of this Agreement
pursuant to its terms or the Effective Time, except as permitted by the terms of
this Agreement and except as provided in Section 4.2 of the Parent Disclosure
Letter, without the prior written consent of Company (which consent shall not be
unreasonably withheld), during the period from the date of this Agreement and
continuing until the earlier of the termination of this Agreement pursuant to
its terms or the Effective Time, Parent shall not do any of the following:
 
        (a) Declare, set aside or pay any dividends on or make any other
    distributions (whether in cash, stock, equity securities or property) in
    respect of any capital stock or split, combine or reclassify any capital
    stock or issue or authorize the issuance of any other securities in respect
    of, in lieu of or in substitution for any capital stock; or
 
        (b) Engage in any action that could reasonably be expected to cause the
    Merger to fail to qualify as a "reorganization" under Section 368(a) of the
    Code.
 
                                   ARTICLE V
                             ADDITIONAL AGREEMENTS
 
    5.1  PROXY STATEMENT/PROSPECTUS; REGISTRATION STATEMENT; OTHER FILINGS;
BOARD RECOMMENDATIONS.  As promptly as practicable after the execution of this
Agreement, Company and Parent will prepare, and file with the SEC, the Proxy
Statement/Prospectus and Parent will prepare and file with the SEC the
Registration Statement in which the Proxy Statement/Prospectus will be included
as a prospectus. Each of Company and Parent will respond to any comments of the
SEC, will use its respective commercially reasonable efforts to have the
Registration Statement declared effective under the Securities Act as promptly
as practicable after such filing and Company will cause the Proxy
Statement/Prospectus to be mailed to its stockholders at the earliest
practicable time after the Registration Statement is declared effective by the
SEC. As promptly as practicable after the date of this Agreement, each of
Company and Parent will prepare and file any other filings required to be filed
by it under the Exchange Act, the Securities Act or any other Federal, foreign
or Blue Sky or related laws relating to the Merger and the transactions
contemplated by this Agreement (the "Other Filings"). Each of Company and Parent
will notify the other promptly upon the receipt of any comments from the SEC or
its staff or any other government officials and of any request by the SEC or its
staff or any other government officials for amendments or supplements to the
Registration Statement, the Proxy Statement/Prospectus or any Other Filing or
for additional information and will supply the other with copies of all
correspondence between such party or any of its representatives, on the one
hand, and the SEC, or its staff or any other government officials, on the other
hand, with respect to the Registration Statement, the Proxy
Statement/Prospectus, the Merger or any Other Filing. Each of Company and Parent
will cause all documents that it is responsible for filing with the SEC or other
regulatory authorities under this Section 5.1(a) to comply in all material
respects with all applicable requirements of law and the rules and regulations
promulgated thereunder. Whenever any event occurs which is required to be set
forth in an amendment or supplement to the Proxy Statement/Prospectus, the
Registration Statement or any Other Filing, Company or Parent, as the case may
be, will promptly inform the other of such occurrence and cooperate in filing
with the SEC or its staff or any other government officials, and/or mailing to
stockholders of Company, such amendment or supplement.
 
    5.2  MEETING OF COMPANY STOCKHOLDERS.
 
    (a) Promptly after the date hereof, Company will take all action necessary
in accordance with the Delaware Law and its Certificate of Incorporation and
Bylaws to convene the Company Stockholders' Meeting to be held as promptly as
practicable, and in any event (to the extent permissible under applicable law)
within 45 days after the declaration of effectiveness of the Registration
Statement, for the purpose of voting upon this Agreement and the Merger. Company
will use its commercially reasonable efforts to
 
                                       22
<PAGE>
solicit from its stockholders proxies in favor of the adoption and approval of
this Agreement and the approval of the Merger and will take all other action
necessary or advisable to secure the vote or consent of its stockholders
required by the rules of Nasdaq or Delaware Law to obtain such approvals.
Notwithstanding the anything to the contrary contained in this Agreement,
Company may adjourn or postpone the Company Stockholders' Meeting to the extent
necessary to ensure that any necessary supplement or amendment to the
Prospectus/Proxy Statement is provided to Company's stockholders in advance of a
vote on the Merger and this Agreement or, if as of the time for which Company
Stockholders' Meeting is originally scheduled (as set forth in the
Prospectus/Proxy Statement) there are insufficient shares of Company Common
Stock represented (either in person or by proxy) to constitute a quorum
necessary to conduct the business of the Company's Stockholders' Meeting.
Company shall ensure that the Company Stockholders' Meeting is called, noticed,
convened, held and conducted, and subject to Section 5.2(c) that all proxies
solicited by the Company in connection with the Company Stockholders' Meeting
are solicited, in compliance with the Delaware Law, its Certificate of
Incorporation and Bylaws, the rules of Nasdaq and all other applicable legal
requirements. Company's obligation to call, give notice of, convene and hold the
Company Stockholders' Meeting in accordance with this Section 5.2(a) shall not
be limited to or otherwise affected by the commencement, disclosure,
announcement or submission to Company of any Acquisition Proposal, or by any
withdrawal, amendment or modification of the recommendation of the Board of
Directors of Company with respect to the Merger.
 
    (b) Subject to Section 5.2(c): (i) the Board of Directors of Company shall
unanimously recommend that Company's stockholders vote in favor of and adopt and
approve this Agreement and the Merger at the Company Stockholders' Meeting; (ii)
the Prospectus/Proxy Statement shall include a statement to the effect that the
Board of Directors of the Company has unanimously recommended that Company's
stockholders vote in favor of and adopt and approve this Agreement and the
Merger at the Company Stockholders' Meeting; and (iii) neither the Board of
Directors of Company nor any committee thereof shall withdraw, amend or modify,
or propose or resolve to withdraw, amend or modify in a manner adverse to
Parent, the unanimous recommendation of the Board of Directors of Company that
Company's stockholders vote in favor of and adopt and approve this Agreement and
the Merger. For purposes of this Agreement, said recommendation of the Board of
Directors shall be deemed to have been modified in a manner adverse to Parent if
said recommendation shall no longer be unanimous.
 
    (c) Nothing in this Agreement shall prevent the Board of Directors of
Company from withholding, withdrawing, amending or modifying its unanimous
recommendation in favor of the Merger, or from endorsing or recommending to its
stockholders a Superior Offer (as defined below) if (i) a Superior Offer is made
to the Company and is not withdrawn, (ii) neither Company nor any of its
representatives shall have violated any of the restrictions set forth in Section
5.4 with respect to such Superior Offer or the party making such offer (or any
affiliate or associate of such party), and (iii) the Board of Directors of
Company or any committee thereof concludes in good faith, after consultation
with its outside counsel, that, in light of such Superior Offer, the
withholding, withdrawal, amendment or modification of such recommendation, and
the endorsement or recommendation of such Superior Offer, is required in order
for the Board of Directors of Company or any committee thereof to comply with
its fiduciary obligations to Company's stockholders under applicable law.
Subject to applicable laws, nothing contained in this Section 5.2 shall limit
Company's obligation to hold and convene the Company Stockholders' Meeting
(regardless of whether the unanimous recommendation of the Board of Directors of
the Company shall have been withdrawn, amended or modified). For purposes of
this Agreement ("Superior Offer") shall mean an unsolicited, bona fide written
offer made by a third party to consummate any of the following transactions: (i)
a merger, consolidation, business combination, recapitalization, liquidation,
dissolution or similar transaction involving Company pursuant to which the
stockholders of Company immediately preceding such transaction hold less than
50% of the equity interest in the surviving or resulting entity of such
transaction; (ii) a sale or other disposition by Company of assets (excluding
inventory and used equipment sold in the ordinary course of business)
representing in excess of 50% of the fair market value of Company's business
immediately prior to such sale, or (iii) the acquisition by any person or group
 
                                       23
<PAGE>
(including by way of a tender offer or an exchange offer or issuance by
Company), directly or indirectly, of beneficial ownership or a right to acquire
beneficial ownership of shares representing in excess of 50% of the voting power
of the then outstanding shares of capital stock of the Company, on terms that
the Board of Directors of Company determines, in its reasonable judgment, after
consultation with its financial advisor, to be more favorable to the Company
stockholders than the terms of the Merger; PROVIDED, HOWEVER, that any such
offer shall not be deemed to be a "Superior Offer" if any financing required to
consummate the transaction contemplated by such offer is not committed and is
not likely in the judgment of Company's Board of Directors to be obtained by
such third party on a timely basis.
 
    5.3  CONFIDENTIALITY; ACCESS TO INFORMATION.
 
    (a) The parties acknowledge that Company and Parent have previously executed
a Confidentiality Agreement, dated as of September 1, 1998 (the "Confidentiality
Agreement"), which Confidentiality Agreement will continue in full force and
effect in accordance with its terms.
 
    (b) Access to Information. Company will afford Parent and its accountants,
counsel and other representatives reasonable access during normal business hours
to the properties, books, records and personnel of Company during the period
prior to the Effective Time to obtain all information concerning the business,
including the status of product development efforts, properties, results of
operations and personnel of Company, as Parent may reasonably request. No
information or knowledge obtained by Parent in any investigation pursuant to
this Section 5.3 will affect or be deemed to modify any representation or
warranty contained herein or the conditions to the obligations of the parties to
consummate the Merger.
 
    5.4  NO SOLICITATION.
 
    (a) From and after the date of this Agreement until the Effective Time or
termination of this Agreement pursuant to Article V5, Company and its
subsidiaries will not, nor will they authorize or permit any of their respective
officers, directors, affiliates or employees or any investment banker, attorney
or other advisor or representative retained by any of them to, directly or
indirectly, (i) solicit, initiate, encourage or induce the making, submission or
announcement of any Acquisition Proposal (as hereinafter defined), (ii)
participate in any discussions or negotiations regarding, or furnish to any
person any non-public information with respect to, or take any other action to
facilitate any inquiries or the making of any proposal that constitutes or may
reasonably be expected to lead to, any Acquisition Proposal, (iii) engage in
discussions with any person with respect to any Acquisition Proposal, except as
to the existence of these provisions, (iv) subject to Section 5.2(c), approve,
endorse or recommend any Acquisition Proposal or (v) enter into any letter of
intent or similar document or any contract agreement or commitment contemplating
or otherwise relating to any Acquisition Transaction; PROVIDED, HOWEVER, that
prior to the approval of this Agreement by the required Company Stockholder
Vote, this Section 5.4(a) shall not prohibit Company from (A) furnishing
nonpublic information regarding Company and its subsidiaries to, entering into a
confidentiality agreement with or entering into discussions or negotiations
with, any person or group in response to a Superior Offer submitted by such
person or group (and not withdrawn) if (1) neither Company nor any
representative of Company and its subsidiaries shall have violated any of the
restrictions set forth in this Section 5.4 with respect to such person or group
making such Superior Offer (or any affiliate or associate of such person or
group), (2) the Board of Directors of Company concludes in good faith, after
consultation with its outside legal counsel, that such action is required in
order for the Board of Directors of Company to comply with its fiduciary
obligations to Company's stockholders under applicable law, (3) prior to
furnishing any such nonpublic information to, or entering into discussions or
negotiations with, such person or group, Company gives Parent written notice of
the identity of such person or group and of Company's intention to furnish
nonpublic information to, or enter into discussions or negotiations with, such
person or group and the Company receives from such person or group an executed
confidentiality agreement containing customary limitations on the use and
disclosure of all nonpublic written and oral information furnished to such
person or group by or on behalf of the Company,
 
                                       24
<PAGE>
and (4) contemporaneously with furnishing any such nonpublic information to such
person or group, Company furnishes such nonpublic information to Parent (to the
extent such nonpublic information has not been previously furnished by the
Company to Parent) or (B) complying with Rules 14d-9 and 14e-2 promulgated under
the Exchange Act with regard to an Acquisition Proposal. Company and its
subsidiaries will immediately cease any and all existing activities, discussions
or negotiations with any parties conducted heretofore with respect to any
Acquisition Proposal. Without limiting the foregoing, it is understood that any
violation of the restrictions set forth in the preceding two sentences by any
officer or director of Company or any of its subsidiaries or any investment
banker, attorney or other advisor or representative (excluding non-officer
employees) of Company or any of its subsidiaries shall be deemed to be a breach
of this Section 5.4 by Company. In addition to the foregoing, the Company shall
(i) provide Parent with at least 24 hours prior notice (or such lesser prior
notice as provided to the members of Company's Board of Directors but in no
event less than eight hours) of any meeting of Company's Board of Directors at
which Company's Board of Directors is reasonably expected to consider a Superior
Offer and (ii) provide Parent with at least two (2) business days or forty-eight
(48) hours prior written notice of a meeting of Company's Board of Directors at
which Company's Board of Directors is reasonably expected to recommend a
Superior Offer to its stockholders and together with such notice a copy of the
definitive documentation relating to such Superior Offer, to the extent
available.
 
    For purposes of this Agreement, "Acquisition Proposal" shall mean any offer
or proposal (other than an offer or proposal by Parent) relating to any
Acquisition Transaction. For the purposes of this Agreement, "Acquisition
Transaction" shall mean any transaction or series of related transactions other
than the transactions contemplated by this Agreement involving: (A) any
acquisition or purchase from the Company by any person or "group" (as defined
under Section 13(d) of the Exchange Act and the rules and regulations
thereunder) of more than a 15% interest in the total outstanding voting
securities of the Company or any of its subsidiaries or any tender offer or
exchange offer that if consummated would result in any person or "group" (as
defined under Section 13(d) of the Exchange Act and the rules and regulations
thereunder) beneficially owning 15% or more of the total outstanding voting
securities of the Company or any of its subsidiaries or any merger,
consolidation, business combination or similar transaction involving the Company
pursuant to which the stockholders of the Company immediately preceding such
transaction hold less than 85% of the equity interests in the surviving or
resulting entity of such transaction; (B) any sale, lease (other than in the
ordinary course of business), exchange, transfer, license (other than in the
ordinary course of business), acquisition or disposition of more than 50% of the
assets of the Company; or (C) any liquidation or dissolution of the Company.
 
    (b) In addition to the obligations of Company set forth in paragraph (a) of
this Section 5.4, Company as promptly as practicable shall advise Parent orally
and in writing of any request for non-public information which Company
reasonably believes would lead to an Acquisition Proposal or of any Acquisition
Proposal, or any inquiry with respect to or which Company reasonably should
believe would lead to any Acquisition Proposal, the material terms and
conditions of such request, Acquisition Proposal or inquiry, and the identity of
the person or group making any such request, Acquisition Proposal or inquiry.
Company will keep Parent informed in all material respects of the status and
details (including material amendments or proposed amendments) of any such
request, Acquisition Proposal or inquiry.
 
    5.5  PUBLIC DISCLOSURE.  Parent and Company will consult with each other,
and to the extent practicable, agree, before issuing any press release or
otherwise making any public statement with respect to the Merger, this Agreement
or an Acquisition Proposal and will not issue any such press release or make any
such public statement prior to such consultation, except as may be required by
law or any listing agreement with a national securities exchange or Nasdaq. The
parties have agreed to the text of the joint press release announcing the
signing of this Agreement.
 
                                       25
<PAGE>
    5.6  REASONABLE EFFORTS; NOTIFICATION.
 
    (a) Upon the terms and subject to the conditions set forth in this
Agreement, each of the parties agrees to use all reasonable efforts to take, or
cause to be taken, all actions, and to do, or cause to be done, and to assist
and cooperate with the other parties in doing, all things necessary, proper or
advisable to consummate and make effective, in the most expeditious manner
practicable, the Merger and the other transactions contemplated by this
Agreement, including using reasonable efforts to accomplish the following: (i)
the taking of all reasonable acts necessary to cause the conditions precedent
set forth in Article VI to be satisfied, (ii) the obtaining of all necessary
actions or nonactions, waivers, consents, approvals, orders and authorizations
from Governmental Entities and the making of all necessary registrations,
declarations and filings (including registrations, declarations and filings with
Governmental Entities, if any) and the taking of all reasonable steps as may be
necessary to avoid any suit, claim, action, investigation or proceeding by any
Governmental Entity, (iii) the defending of any suits, claims, actions,
investigations or proceedings, whether judicial or administrative, challenging
this Agreement or the consummation of the transactions contemplated hereby,
including seeking to have any stay or temporary restraining order entered by any
court or other Governmental Entity vacated or reversed and (iv) the execution or
delivery of any additional instruments necessary to consummate the transactions
contemplated by, and to fully carry out the purposes of, this Agreement. In
connection with and without limiting the foregoing, Company and its Board of
Directors shall, if any state takeover statute or similar statute or regulation
is or becomes applicable to the Merger, this Agreement or any of the
transactions contemplated by this Agreement, use all reasonable efforts to
ensure that the Merger and the other transactions contemplated by this Agreement
may be consummated as promptly as practicable on the terms contemplated by this
Agreement and otherwise to minimize the effect of such statute or regulation on
the Merger, this Agreement and the transactions contemplated hereby.
Notwithstanding anything herein to the contrary, nothing in this Agreement shall
be deemed to require Parent or Company or any subsidiary or affiliate thereof to
agree to any divestiture by itself or any of its affiliates of shares of capital
stock or of any business, assets or property, or the imposition of any material
limitation on the ability of any of them to conduct their businesses or to own
or exercise control of such assets, properties and stock.
 
    (b) Company shall give prompt notice to Parent of any representation or
warranty made by it contained in this Agreement becoming untrue or inaccurate,
or any failure of Company to comply with or satisfy in any material respect any
covenant, condition or agreement to be complied with or satisfied by it under
this Agreement, in each case, such that the conditions set forth in Section
6.3(a) or 6.3(b) would not be satisfied, PROVIDED, HOWEVER, that no such
notification shall affect the representations, warranties, covenants or
agreements of the parties or the conditions to the obligations of the parties
under this Agreement.
 
    (c) Parent shall give prompt notice to Company of any representation or
warranty made by it or Merger Sub contained in this Agreement becoming untrue or
inaccurate, or any failure of Parent or Merger Sub to comply with or satisfy in
any material respect any covenant, condition or agreement to be complied with or
satisfied by it under this Agreement, in each case, such that the conditions set
forth in Section 6.2(a) or 6.2(b) would not be satisfied, PROVIDED, HOWEVER,
that no such notification shall affect the representations, warranties,
covenants or agreements of the parties or the conditions to the obligations of
the parties under this Agreement.
 
    5.7  THIRD PARTY CONSENTS.  As soon as practicable following the date
hereof, Parent and Company will each use its commercially reasonable efforts to
obtain any consents, waivers and approvals under any of its or its subsidiaries'
respective agreements, contracts, licenses or leases required to be obtained in
connection with the consummation of the transactions contemplated hereby.
 
    5.8  STOCK OPTIONS AND EMPLOYEE BENEFITS.
 
    (a) At the Effective Time, each outstanding option to purchase shares of
Company Common Stock (each, a "Company Stock Option") under Company's 1995 Stock
Option Plan (including options granted
 
                                       26
<PAGE>
under the predecessor 1991 Stock Option Plan) and Supplemental Stock Option Plan
or as described in Section 2.3(viii) hereof, whether or not exercisable, whether
or not vested, shall by virtue of the Merger and without any further action on
the part of Company or the holder thereof, be assumed by Parent in such manner
that Parent (i) is "assuming a stock option in a transaction to which Section
424(a) applied" within the meaning of Section 424 of the Code, or (ii) to the
extent that Section 424 of the Code does not apply to any such Company Stock
Options, would be a transaction within Section 424 of the Code. Each Company
Stock Option so assumed by Parent under this Agreement will continue to have,
and be subject to, the same terms and conditions of such options immediately
prior to the Effective Time (including, without limitation, any repurchase
rights or vesting provisions), except that (1) each Company Stock Option will be
exercisable (or will become exercisable in accordance with its terms) for the
number of whole shares of Parent Common Stock equal to the product of the number
of shares of Company Common Stock that were issuable upon exercise of such
Company Stock Option immediately prior to the Effective Time multiplied by the
Exchange Ratio, rounded down to the nearest whole number of shares of Parent
Common Stock and (2) the per share exercise price for the shares of Parent
Common Stock issuable upon exercise of such assumed Company Stock Option will be
equal to the quotient determined by dividing the exercise price per share of
Company Common Stock at which such Company Stock Option was exercisable
immediately prior to the Effective Time by the Exchange Ratio, rounded up to the
nearest whole cent. In addition, each Restricted Stock Purchase Agreement
between the Company or an Affiliate and an employee of such entity shall be
assumed by Parent, and the number of shares subject to such Restricted Stock
Purchase Agreement will be adjusted as described above.
 
    (b) It is intended that Company Stock Options assumed by Parent shall
qualify following the Effective Time as incentive stock options as defined in
Section 422 of the Code to the extent Company Stock Options qualified as
incentive stock options immediately prior to the Effective Time and the
provisions of this Section 5.8 shall be applied consistent with such intent.
 
    (c) Outstanding purchase rights under the ESPP shall be exercised upon the
earlier of January 29, 1999 or immediately prior to the Effective Time, provided
that if the Effective Time is later than January 31, 1999, then a new Purchase
Period (as defined in the ESPP) will commence on February 1, 1999 and will end
upon the earlier of July 31, 1999 or immediately prior to the Effective Time,
and each participant in the ESPP shall accordingly be issued shares of Company
Common Stock at that time pursuant to the terms of the ESPP and each share of
Company Common Stock so issued shall by virtue of the Merger, and without any
action on the part of the holder thereof, be converted into the right to receive
the Common Stock of the Parent pursuant to Section 1.6(a).
 
    (d) From and after the Effective Time, Parent shall grant all employees
credit for all service (to the same extent as service with Parent is taken into
account with respect to similarly situated employees of Parent) with Company
prior to the Effective Time for (i) eligibility and vesting purposes and (ii)
for purposes of vacation accrual after the Effective Time as if such service
with Company was service with Parent. Parent and Company agree that where
applicable with respect to any medical or dental benefit plan of Parent, Parent
shall, to the extent permitted under its plans, waive any pre-existing condition
exclusion and actively-at-work requirements (provided, however, that no such
waiver shall apply to a pre-existing condition of any employee of Company who
was, as of the Effective Time, excluded from participation in a plan by virtue
of such pre-existing condition).
 
    (e) Any Company employee whose employment is involuntarily terminated
without cause within 90 days following the Effective Time will receive severance
benefits in accordance with the existing terms of the Company Officers Severance
Plan or Company Employee Severance Plan, to the extent such individual is
eligible under each such plan. In addition, any person who is a Company officer
on the date hereof whose employment is voluntarily terminated within ninety (90)
days following the Effective Time will receive severance benefits in accordance
with the existing terms of the Company Officers Severance Plan, to the extent
such officer is eligible under such plan.
 
                                       27
<PAGE>
    5.9  FORM S-8.  Parent agrees to file a registration statement on Form S-8
for the shares of Parent Common Stock issuable with respect to assumed Company
Stock Options as soon as is reasonably practicable after the Effective Time (but
in any event within five (5) business days of the Effective Time) and intends to
maintain the effectiveness of such registration statement thereafter for so long
as any of such options or other rights remain outstanding.
 
    5.10  INDEMNIFICATION.
 
    (a) From and after the Effective Time, Parent will cause the Surviving
Corporation to fulfill and honor in all respects the obligations of Company
pursuant to any indemnification agreements between Company and its present and
former directors and officers in effect immediately prior to the Effective Time
(the "Indemnified Parties") and any indemnification provisions under Company's
Certificate of Incorporation or Bylaws as in effect on the date hereof. The
Certificate of Incorporation and Bylaws of the Surviving Corporation will
contain provisions with respect to exculpation and indemnification that are at
least as favorable to the Indemnified Parties as those contained in the
Certificate of Incorporation and Bylaws of Company as in effect on the date
hereof, which provisions will not be amended, repealed or otherwise modified for
a period of four years from the Effective Time in any manner that would
adversely affect the rights thereunder of individuals who, immediately prior to
the Effective Time, were directors, officers, employees or agents of Company,
unless such modification is required by law.
 
    (b) For a period of four years after the Effective Time, Parent will cause
the Surviving Corporation to use its commercially reasonable efforts to maintain
in effect, if available, directors' and officers' liability insurance covering
those persons who are currently covered by Company's directors' and officers'
liability insurance policy on terms substantially similar to those applicable to
the current directors and officers of Company; PROVIDED, HOWEVER, that in no
event will Parent or the Surviving Corporation be required to expend in excess
of 150% of the annual premium currently paid by Company for such coverage (or
such coverage as is available for such 150% of such annual premium).
 
    (c) The provisions of this Section 5.10 are intended to be in addition to
the rights otherwise available to the Indemnified Parties by law, charter,
statute, bylaw, resolution of the Board of Directors of the Company or
agreement, and shall operate for the benefit of, and shall be enforceable by,
each of the Indemnified Parties, their heirs and their representatives.
 
    5.11  NASDAQ LISTING.  Parent agrees to authorize for listing on Nasdaq the
shares of Parent Common Stock issuable, and those required to be reserved for
issuance, in connection with the Merger, upon official notice of issuance.
 
    5.12  COMPANY AFFILIATE AGREEMENT.  Set forth in the Company Disclosure
Letter is a list of those persons who may be deemed to be, in Company's
reasonable judgment, affiliates of Company within the meaning of Rule 145
promulgated under the Securities Act (each a "Company Affiliate"). Company will
provide Parent with such information and documents as Parent reasonably requests
for purposes of reviewing such list. Company will use its commercially
reasonable efforts to deliver or cause to be delivered to Parent, as promptly as
practicable on or following the date hereof, from each Company Affiliate an
executed affiliate agreement in substantially the form attached hereto as
EXHIBIT C (the "Company Affiliate Agreement"), each of which will be in full
force and effect as of the Effective Time. Parent will be entitled to place
appropriate legends on the certificates evidencing any Parent Common Stock to be
received by a Company Affiliate pursuant to the terms of this Agreement, and to
issue appropriate stop transfer instructions to the transfer agent for the
Parent Common Stock, consistent with the terms of the Company Affiliate
Agreement.
 
    5.13  REGULATORY FILINGS; REASONABLE EFFORTS.  As soon as may be reasonably
practicable, Company and Parent each shall file with the United States Federal
Trade Commission (the "FTC") and the Antitrust Division of the United States
Department of Justice ("DOJ") Notification and Report Forms relating to the
transactions contemplated herein as required by the HSR Act, as well as
comparable pre-merger
 
                                       28
<PAGE>
notification forms required by the merger notification or control laws and
regulations of any applicable jurisdiction, as agreed to by the parties. Company
and Parent each shall promptly (a) supply the other with any information which
may be required in order to effectuate such filings and (b) supply any
additional information which reasonably may be required by the FTC, the DOJ or
the competition or merger control authorities of any other jurisdiction and
which the parties may reasonably deem appropriate.
 
    5.14  COMFORT LETTER.  Prior to the Closing, Company shall cause Ernst &
Young LLP, certified public accountants to Company, to provide a letter
reasonably acceptable to Parent, relating to their audit of the financial
statements relating to Company contained in or incorporated by reference in the
Registration Statement.
 
    5.15  COMPANY AUDIT; ACCOUNTANTS' CONSENT.  Company shall cause Ernst &
Young LLP, certified public accountants to the Company, by a target date of
November 15, 1998 but in no event later than November 30, 1998; (i) to complete,
and to communicate to Parent the results of, an audit of the Company's financial
statements (A) for each of the three calendar quarters of 1998 which have been
completed as of the date hereof (the "Quarterly Audit") and (B) as of and for
the nine-month period ending September 30, 1998 (the "Nine-Month Audit"); and
(ii) to provide, upon request, an accountants' consent for the inclusion, in the
Proxy Statement/Prospectus, of audit report(s) for the periods required to be
included in such Proxy Statement/Prospectus as well as for the nine-month period
ending September 30, 1998 (irrespective of whether an audit for such period is
required under SEC rules) (the "Accountants' Consent"). The inclusion of a going
concern qualification in the Nine-Month Audit or any Quarterly Audit shall not
be deemed to result in a breach of the covenant set forth in this Section 5.15.
 
    5.16  NO RIGHTS PLAN AMENDMENT.  Except as required by Section 6.3(e), prior
to the Closing, Company shall not amend or modify the Company Rights Plan in any
manner or take another action so as to (i) render the Company Rights Plan
inapplicable to any transaction(s) other than the Merger and other transactions
contemplated by this Agreement, the Company Stock Option Agreement, the Company
Affiliate Agreements and the Company Voting Agreements, or (ii) permit any
person or group who would otherwise be an Acquiring Person (as defined in the
Company Rights Plan) not to be an Acquiring Person, or (iii) provide that a
Distribution Date, a Section II(a)(ii) Trigger Date or a Shares Acquisition Date
(as such terms are defined in the Company Rights Plan) or similar event does not
occur by reason of the execution of any agreement or transaction other than this
Agreement and the Merger and the agreements and transactions contemplated hereby
and thereby, or (iv) except as specifically contemplated by this Agreement,
otherwise affect the rights of holders of Company Rights.
 
    5.17  NONCOMPETITION AGREEMENTS.  The Company will encourage the persons set
forth on Exhibit D-1 hereto to enter into Noncompetition Agreements
substantially in the form attached hereto as Exhibit D-2.
 
                                   ARTICLE VI
                            CONDITIONS TO THE MERGER
 
    6.1  CONDITIONS TO OBLIGATIONS OF EACH PARTY TO EFFECT THE MERGER.  The
respective obligations of each party to this Agreement to effect the Merger
shall be subject to the satisfaction at or prior to the Closing Date of the
following conditions:
 
        (a)  COMPANY STOCKHOLDER APPROVAL.  This Agreement shall have been
    approved and adopted, and the Merger shall have been duly approved, by the
    requisite vote under applicable law, by the stockholders of Company.
 
        (b)  REGISTRATION STATEMENT EFFECTIVE; PROXY STATEMENT.  The SEC shall
    have declared the Registration Statement effective. No stop order suspending
    the effectiveness of the Registration Statement or any part thereof shall
    have been issued and no proceeding for that purpose, and no similar
 
                                       29
<PAGE>
    proceeding in respect of the Proxy Statement/Prospectus, shall have been
    initiated or threatened in writing by the SEC.
 
        (c)  NO ORDER; HSR ACT.  No Governmental Entity shall have enacted,
    issued, promulgated, enforced or entered any statute, rule, regulation,
    executive order, decree, injunction or other order (whether temporary,
    preliminary or permanent) which is in effect and which has the effect of
    making the Merger illegal or otherwise prohibiting consummation of the
    Merger. All waiting periods, if any, under the HSR Act relating to the
    transactions contemplated hereby will have expired or terminated early and
    all material foreign antitrust approvals required to be obtained prior to
    the Merger in connection with the transactions contemplated hereby shall
    have been obtained.
 
        (d)  TAX OPINIONS.  Parent and Company shall each have received written
    opinions from their respective tax counsel (Wilson Sonsini Goodrich &
    Rosati, Professional Corporation, and Gunderson Dettmer Stough Villenueve
    Franklin & Hachigan, LLP, respectively), in form and substance reasonably
    satisfactory to them, to the effect that the Merger will constitute a
    reorganization within the meaning of Section 368(a) of the Code and such
    opinions shall not have been withdrawn; provided, however, that if the
    counsel to either Parent or Company does not render such opinion, this
    condition shall nonetheless be deemed to be satisfied with respect to such
    party if counsel to the other party renders such opinion to such party. The
    parties to this Agreement agree to make such reasonable representations as
    requested by such counsel for the purpose of rendering such opinions.
 
        (e)  NASDAQ LISTING.  The shares of Parent Common Stock issuable to
    stockholders of Company pursuant to this Agreement and such other shares
    required to be reserved for issuance in connection with the Merger shall
    have been authorized for listing on Nasdaq upon official notice of issuance.
 
    6.2  ADDITIONAL CONDITIONS TO OBLIGATIONS OF COMPANY.  The obligation of
Company to consummate and effect the Merger shall be subject to the satisfaction
at or prior to the Closing Date of each of the following conditions, any of
which may be waived, in writing, exclusively by Company:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  Each representation and warranty
    of Parent and Merger Sub contained in this Agreement (i) shall have been
    true and correct as of the date of this Agreement and (ii) shall be true and
    correct on and as of the Closing Date with the same force and effect as if
    made on the Closing Date except, (A) in each case, or in the aggregate, as
    does not constitute a Material Adverse Effect on Parent and Merger Sub, (B)
    for changes contemplated by this Agreement and (C) for those representations
    and warranties which address matters only as of a particular date (which
    representations shall have been true and correct except as does not
    constitute a Material Adverse Effect on Parent and Merger Sub as of such
    particular date) (it being understood that, for purposes of determining the
    accuracy of such representations and warranties, (i) all "Material Adverse
    Effect" qualifications and other qualifications based on the word "material"
    or similar phrases contained in such representations and warranties shall be
    disregarded and (ii) any update of or modification to the Parent Disclosure
    Letter made or purported to have been made after the date of this Agreement
    shall be disregarded). Company shall have received a certificate with
    respect to the foregoing signed on behalf of Parent by an authorized officer
    of Parent.
 
        (b)  AGREEMENTS AND COVENANTS.  Parent and Merger Sub shall have
    performed or complied in all material respects with all agreements and
    covenants required by this Agreement to be performed or complied with by
    them on or prior to the Closing Date, and Company shall have received a
    certificate to such effect signed on behalf of Parent by an authorized
    officer of Parent.
 
        (c)  MATERIAL ADVERSE EFFECT.  No Material Adverse Effect with respect
    to Parent shall have occurred since the date of this Agreement.
 
    6.3  ADDITIONAL CONDITIONS TO THE OBLIGATIONS OF PARENT AND MERGER SUB.  The
obligations of Parent and Merger Sub to consummate and effect the Merger shall
be subject to the satisfaction at or prior to the
 
                                       30
<PAGE>
Closing Date of each of the following conditions, any of which may be waived, in
writing, exclusively by Parent:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  Each representation and warranty
    of Company contained in this Agreement (i) shall have been true and correct
    as of the date of this Agreement and (ii) shall be true and correct on and
    as of the Closing Date with the same force and effect as if made on and as
    of the Closing Date except (A) in each case, or in the aggregate, as does
    not constitute a Material Adverse Effect on Company (B) for changes
    contemplated by this Agreement and (C) for those representations and
    warranties which address matters only as of a particular date (which
    representations shall have been true and correct except as does not
    constitute a Material Adverse Effect on Company as of such particular date)
    (it being understood that, for purposes of determining the accuracy of such
    representations and warranties, (i) all "Material Adverse Effect"
    qualifications and other qualifications based on the word "material" or
    similar phrases contained in such representations and warranties shall be
    disregarded and (ii) any update of or modification to the Company Disclosure
    Letter made or purported to have been made after the date of this Agreement
    shall be disregarded). Parent shall have received a certificate with respect
    to the foregoing signed on behalf of Company by an authorized officer of
    Company.
 
        (b)  AGREEMENTS AND COVENANTS.  Company shall have performed or complied
    in all material respects with all agreements and covenants required by this
    Agreement to be performed or complied with by it at or prior to the Closing
    Date, and Parent shall have received a certificate to such effect signed on
    behalf of Company by the Chief Executive Officer and the Chief Financial
    Officer of Company.
 
        (c)  MATERIAL ADVERSE EFFECT.  No Material Adverse Effect with respect
    to Company and its subsidiaries shall have occurred since the date of this
    Agreement.
 
        (d)  AFFILIATE AGREEMENTS.  Each of the Company Affiliates shall have
    entered into the Company Affiliate Agreement and each of such agreements
    will be in full force and effect as of the Effective Time.
 
        (e)  COMPANY RIGHTS PLANS.  All actions necessary to extinguish and
    cancel all outstanding Rights under the Company Rights Plan or render such
    rights inapplicable to the Merger shall have been taken.
 
        (f)  COMPANY AUDIT.  (i) On or before November 30, 1998, the Quarterly
    Audit and the Nine-Month Audit shall have been completed by Ernst & Young
    LLP and the results of such audits shall have been communicated to Parent;
    and (ii) the revenues and other financial results of the Quarterly Audit for
    each of the three calendar quarters included in such audit shall not be
    materially different from the revenues and other financial results disclosed
    by the Company for each of such three calendar quarters in the Form 10-Q
    filed by the Company with respect to each such quarter; and (iii) if
    requested, Ernst & Young LLP shall have provided the Accountants' Consent on
    or before November 30, 1998.
 
        (g)  NO ADJUSTMENT TO FINANCIAL STATEMENTS.  No material restatement or
    adjustment shall have occurred or been made to any audited financial
    statements of the Company which were contained in any Company SEC Reports
    filed by the Company on or before the date hereof.
 
                                       31
<PAGE>
                                  ARTICLE VII
                       TERMINATION, AMENDMENT AND WAIVER
 
    7.1  TERMINATION.  This Agreement may be terminated at any time prior to the
Effective Time, whether before or after the requisite approvals of the
stockholders of Company or Parent:
 
        (a) by mutual written consent duly authorized by the Boards of Directors
    of Parent and Company;
 
        (b) by either Company or Parent if the Merger shall not have been
    consummated by April 30, 1999 for any reason; PROVIDED, HOWEVER, that the
    right to terminate this Agreement under this Section 7.1(b) shall ont be
    available to any party whose action or failure to act has been a principal
    cause of or resulted in the failure of the Merger to occur on or before such
    date and such action or failure to act constitutes a breach of this
    Agreement;
 
        (c) by either Company or Parent if a Governmental Entity shall have
    issued an order, decree or ruling or taken any other action, in any case
    having the effect of permanently restraining, enjoining or otherwise
    prohibiting the Merger, which order, decree, ruling or other action is final
    and nonappealable;
 
        (d) by either Company or Parent if the required approval of the
    stockholders of Company contemplated by this Agreement shall not have been
    obtained by reason of the failure to obtain the required vote at a meeting
    of Company stockholders duly convened therefor or at any adjournment thereof
    (PROVIDED that the right to terminate this Agreement under this Section
    7.1(d) shall not be available to Company where the failure to obtain Company
    stockholder approval shall have been caused by the action or failure to act
    of Company and such action or failure to act constitutes a breach by Company
    of this Agreement);
 
        (e) by Parent if a Triggering Event (as defined below) shall have
    occurred;
 
        (f) by Parent (at any time prior to the adoption and approval of this
    Agreement and the Merger by the required vote of the stockholders of
    Company) if a Termination Event (as defined below) shall have occurred;
 
        (g) by Company, upon a breach of any representation, warranty, covenant
    or agreement on the part of Parent set forth in this Agreement, or if any
    representation or warranty of Parent shall have become untrue, in either
    case such that the conditions set forth in Section 6.2(a) or Section 6.2(b)
    would not be satisfied as of the time of such breach or as of the time such
    representation or warranty shall have become untrue, PROVIDED that if such
    inaccuracy in Parent's representations and warranties or breach by Parent is
    curable by Parent through the exercise of its commercially reasonable
    efforts, then Company may not terminate this Agreement under this Section
    7.1(g) for thirty days after delivery of written notice from Company to
    Parent of such breach, provided Parent continues to exercise commercially
    reasonable efforts to cure such breach (it being understood that Company may
    not terminate this Agreement pursuant to this paragraph (g) if it shall have
    materially breached this Agreement or if such breach by Parent is cured
    during such thirty day period); or
 
        (h) by Parent, upon a breach of any representation, warranty, covenant
    or agreement on the part of Company set forth in this Agreement, or if any
    representation or warranty of Company shall have become untrue, in either
    case such that the conditions set forth in Section 6.3(a) or Section 6.3(b)
    would not be satisfied as of the time of such breach or as of the time such
    representation or warranty shall have become untrue, PROVIDED, that if such
    inaccuracy in Company's representations and warranties or breach by Company
    is curable by Company through the exercise of its commercially reasonable
    efforts, then Parent may not terminate this Agreement under this Section
    7.1(h) for thirty days after delivery of written notice from Parent to
    Company of such breach, provided Company continues to exercise commercially
    reasonable efforts to cure such breach (it being understood that
 
                                       32
<PAGE>
    Parent may not terminate this Agreement pursuant to this paragraph (h) if it
    shall have materially breached this Agreement or if such breach by Company
    is cured during such thirty day period).
 
    For the purposes of this Agreement, a "Termination Event" shall be deemed to
occur if Company shall not have used commercially reasonable efforts to hold the
Company Stockholders' Meeting as promptly as practicable and in any event within
forty-five (45) days after the Registration Statement is declared effective
under the Securities Act.
 
    For the purposes of this Agreement, a "Triggering Event" shall be deemed to
have occurred if: (i) the Board of Directors of Company or any committee thereof
shall for any reason have withdrawn or shall have amended or modified in a
manner adverse to Parent its unanimous recommendation in favor of, the adoption
and approval of the Agreement or the approval of the Merger; (ii) Company shall
have failed to include in the Proxy Statement/Prospectus the unanimous
recommendation of the Board of Directors of Company in favor of the adoption and
approval of the Agreement and the approval of the Merger; (iii) Board of
Directors of Company fails to reaffirm its unanimous recommendation in favor of
the adoption and approval of the Agreement and the approval of the Merger within
seven (7) business days after Parent requests in writing that such
recommendation be reaffirmed at any time following the public announcement of an
Acquisition Proposal; (iv) the Board of Directors of Company or any committee
thereof shall have approved or publicly recommended any Acquisition Proposal;
(v) Company shall have entered into any letter of intent of similar document or
any agreement, contract or commitment accepting any Acquisition Proposal; or
(vi) a tender or exchange offer relating to securities of Company shall have
been commenced by a Person unaffiliated with Parent and Company shall not have
sent to its securityholders pursuant to Rule 14e-2 promulgated under the
Securities Act, within ten (10) business days after such tender or exchange
offer is first published sent or given, a statement disclosing that Company
recommends rejection of such tender or exchange offer.
 
    7.2  NOTICE OF TERMINATION; EFFECT OF TERMINATION.  Any termination of this
Agreement under Section 7.1 above will be effective immediately upon the
delivery of written notice of the terminating party to the other parties hereto.
In the event of the termination of this Agreement as provided in Section 7.1,
this Agreement shall be of no further force or effect, except (i) as set forth
in this Section 7.2, Section 7.3 and Article 8 (miscellaneous), each of which
shall survive the termination of this Agreement, and (ii) nothing herein shall
relieve any party from liability for any willful breach of this Agreement. No
termination of this Agreement shall affect the obligations of the parties
contained in the Confidentiality Agreement, all of which obligations shall
survive termination of this Agreement in accordance with their terms.
 
    7.3  FEES AND EXPENSES.  Except as set forth in this Section 7.3, all fees
and expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such expenses whether
or not the Merger is consummated; PROVIDED, HOWEVER, that Parent and Company
shall share equally all fees and expenses, other than attorneys' and accountants
fees and expenses, incurred in relation to the printing and filing (with the
SEC) of the Proxy Statement/Prospectus (including any preliminary materials
related thereto) and the Registration Statement (including financial statements
and exhibits) and any amendments or supplements thereto.
 
    7.4  AMENDMENT.  Subject to applicable law, this Agreement may be amended by
the parties hereto at any time by execution of an instrument in writing signed
on behalf of each of Parent and Company.
 
    7.5  EXTENSION; WAIVER.  At any time prior to the Effective Time any party
hereto may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(ii) waive any inaccuracies in the representations and warranties made to such
party contained herein or in any document delivered pursuant hereto and (iii)
waive compliance with any of the agreements or conditions for the benefit of
such party contained herein. Any agreement on the part of a party hereto to any
such extension or waiver shall be valid only if set forth in an instrument in
writing signed on behalf of such party. Delay in exercising any right under this
Agreement shall not constitute a waiver of such right.
 
                                       33
<PAGE>
                                  ARTICLE VIII
                               GENERAL PROVISIONS
 
    8.1  NON-SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The representations
and warranties of Company, Parent and Merger Sub contained in this Agreement
shall terminate at the Effective Time, and only the covenants that by their
terms survive the Effective Time shall survive the Effective Time.
 
    8.2  NOTICES.  All notices and other communications hereunder shall be in
writing and shall be deemed given if delivered personally or by commercial
delivery service, or sent via telecopy (receipt confirmed) to the parties at the
following addresses or telecopy numbers (or at such other address or telecopy
numbers for a party as shall be specified by like notice):
 
        (a) if to Parent or Merger Sub, to:
 
       Informix Corporation
       4100 Bohannon Drive
       Menlo Park, CA 94025
       Attention: Gary Lloyd, Vice President, General Counsel
       Telephone No.:  (650) 926-6300
       Telecopy No.:   (650) 926-6562
 
       with a copy to:
 
       Wilson Sonsini Goodrich & Rosati
       Professional Corporation
       650 Page Mill Road
       Palo Alto, California 94304-1050
       Attention: Martin W. Korman, Esq./Jeffrey A. Herbst, Esq.
       Telephone No.:  (650) 493-9300
       Telecopy No.:   (650) 493-6811
 
        (b) if to Company, to:
 
       Red Brick Systems, Inc.
       485 Alberto Way
       Los Gatos, CA 95032
       Attention: Chris Erickson, President
       Telephone No.:  (408) 399-3200
       Telecopy No.:   (408) 399-7264
 
       with a copy to:
 
       Gunderson Dettmer Stough Villenueve
       Franklin & Hachigan, LLP
       155 Constitution Drive
       Menlo Park, California 94025
       Attention: Daniel E. O'Connor, Esq.
       Telephone No.:  (650) 321-2400
       Telecopy No.:   (650) 321-2800
 
    8.3  INTERPRETATION; KNOWLEDGE.
 
    (a) When a reference is made in this Agreement to Exhibits, such reference
shall be to an Exhibit to this Agreement unless otherwise indicated. When a
reference is made in this Agreement to Sections, such reference shall be to a
Section of this Agreement. Unless otherwise indicated the words "include,"
 
                                       34
<PAGE>
"includes" and "including" when used herein shall be deemed in each case to be
followed by the words "without limitation." The table of contents and headings
contained in this Agreement are for reference purposes only and shall not affect
in any way the meaning or interpretation of this Agreement. When reference is
made herein to "the business of" an entity, such reference shall be deemed to
include the business of all direct and indirect subsidiaries of such entity.
Reference to the subsidiaries of an entity shall be deemed to include all direct
and indirect subsidiaries of such entity.
 
    (b) For purposes of this Agreement the term "knowledge" means with respect
to a party hereto, with respect to any matter in question, that any of the Chief
Executive Officer, Chief Financial Officer, General Counsel or Controller of
such party, has actual knowledge of such matter.
 
    (c) For purposes of this Agreement, the term "Material Adverse Effect" when
used in connection with an entity means any change, event, violation,
inaccuracy, circumstance or effect that is materially adverse to the business,
assets (including intangible assets), capitalization, financial condition or
results of operations of such entity and its parent (if applicable) or
subsidiaries taken as a whole; provided, however, that the following shall not
be considered a "Material Adverse Effect": (i) changes, events, violations,
inaccuracies, circumstances and effects that are caused by conditions affecting
the United States economy as a whole or affecting the industry in which such
entity completes as a whole, which conditions do not affect such entity in a
disproportionate manner, (ii) a shortfall in revenues of such entity as a result
of delays in customer orders (including any effects on such entity's operating
income which result directly from such revenue shortfall), which delays result
from the announcement and pendency of the Merger, or (iii) the loss of employees
resulting from the announcement and pendency of the Merger.
 
    (d) For purposes of this Agreement, the term "person" shall mean any
individual, corporation (including any non-profit corporation), general
partnership, limited partnership, limited liability partnership, joint venture,
estate, trust, company (including any limited liability company or joint stock
company), firm or other enterprise, association, organization, entity or
Governmental Entity.
 
    (e) For purposes of this Agreement, the term "subsidiary" or "subsidiaries"
shall not include Red Brick Australasia Pty Ltd.
 
    8.4  COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other party, it being understood that all
parties need not sign the same counterpart.
 
    8.5  ENTIRE AGREEMENT; THIRD PARTY BENEFICIARIES.  This Agreement and the
documents and instruments and other agreements among the parties hereto as
contemplated by or referred to herein, including the Company Disclosure Letter
and the Parent Disclosure Letter (a) constitute the entire agreement among the
parties with respect to the subject matter hereof and supersede all prior
agreements and understandings, both written and oral, among the parties with
respect to the subject matter hereof, it being understood that the
Confidentiality Agreement shall continue in full force and effect until the
Closing and shall survive any termination of this Agreement; and (b) are not
intended to confer upon any other person any rights or remedies hereunder,
except as specifically provided in Section 5.10.
 
    8.6  SEVERABILITY.  In the event that any provision of this Agreement or the
application thereof, becomes or is declared by a court of competent jurisdiction
to be illegal, void or unenforceable, the remainder of this Agreement will
continue in full force and effect and the application of such provision to other
persons or circumstances will be interpreted so as reasonably to effect the
intent of the parties hereto. The parties further agree to replace such void or
unenforceable provision of this Agreement with a valid and enforceable provision
that will achieve, to the extent possible, the economic, business and other
purposes of such void or unenforceable provision.
 
    8.7  OTHER REMEDIES; SPECIFIC PERFORMANCE.  Except as otherwise provided
herein, any and all remedies herein expressly conferred upon a party will be
deemed cumulative with and not exclusive of any other
 
                                       35
<PAGE>
remedy conferred hereby, or by law or equity upon such party, and the exercise
by a party of any one remedy will not preclude the exercise of any other remedy.
The parties hereto agree that irreparable damage would occur in the event that
any of the provisions of this Agreement were not performed in accordance with
their specific terms or were otherwise breached. It is accordingly agreed that
the parties shall be entitled to seek an injunction or injunctions to prevent
breaches of this Agreement and to enforce specifically the terms and provisions
hereof in any court of the United States or any state having jurisdiction, this
being in addition to any other remedy to which they are entitled at law or in
equity.
 
    8.8  GOVERNING LAW.  This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware, regardless of the laws that
might otherwise govern under applicable principles of conflicts of law thereof;
provided that issues involving the corporate governance of any of the parties
hereto shall be governed by their respective jurisdictions of incorporation.
Each of the parties hereto irrevocably consents to the exclusive jurisdiction of
any state or federal court within the Northern District of California, in
connection with any matter based upon or arising out of this Agreement or the
matters contemplated herein, other than issues involving the corporate
governance of any of the parties hereto, agrees that process may be served upon
them in any manner authorized by the laws of the State of California for such
persons and waives and covenants not to assert or plead any objection which they
might otherwise have to such jurisdiction and such process.
 
    8.9  RULES OF CONSTRUCTION.  The parties hereto agree that they have been
represented by counsel during the negotiation and execution of this Agreement
and, therefore, waive the application of any law, regulation, holding or rule of
construction providing that ambiguities in an agreement or other document will
be construed against the party drafting such agreement or document.
 
    8.10  ASSIGNMENT.  No party may assign either this Agreement or any of its
rights, interests, or obligations hereunder without the prior written approval
of the other parties. Subject to the preceding sentence, this Agreement shall be
binding upon and shall inure to the benefit of the parties hereto and their
respective successors and permitted assigns.
 
    8.11  WAIVER OF JURY TRIAL.  EACH OF PARENT, COMPANY AND MERGER SUB HEREBY
IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR
COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR
RELATING TO THIS AGREEMENT OR THE ACTIONS OF PARENT, COMPANY OR MERGER SUB IN
THE NEGOTIATION, ADMINISTRATION, PERFORMANCE AND ENFORCEMENT HEREOF.
 
                                     *****
 
                                       36
<PAGE>
    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized respective officers as of the date first
written above.
 
<TABLE>
<S>                             <C>  <C>
                                INFORMIX CORPORATION
 
                                By:         /s/ ROBERT J. FINOCCHIO, JR.
                                     -----------------------------------------
                                           Name: Robert J. Finocchio, Jr.
                                        Title: PRESIDENT AND CHIEF EXECUTIVE
                                                      OFFICER
 
                                IC MERGER CORPORATION
 
                                By:         /s/ ROBERT J. FINOCCHIO, JR.
                                     -----------------------------------------
                                           Name: Robert J. Finocchio, Jr.
                                        Title: PRESIDENT AND CHIEF EXECUTIVE
                                                      OFFICER
 
                                RED BRICK SYSTEMS, INC.
 
                                By:         /s/ CHRISTOPHER G. ERICKSON
                                     -----------------------------------------
                                           Name: Christopher G. Erickson
                                        Title: PRESIDENT AND CHIEF EXECUTIVE
                                                      OFFICER
</TABLE>
 
                           **** MERGER AGREEMENT ****
 
                                       37
<PAGE>
                                   EXHIBIT A
 
                            Form of Voting Agreement
 
                      [See Exhibit 99.2 to this Schedule]
<PAGE>
                                   EXHIBIT B
 
                         Form of Stock Option Agreement
 
                      [See Exhibit 99.3 to this Schedule]
<PAGE>
                                   EXHIBIT C
                          FORM OF AFFILIATE AGREEMENT
<PAGE>
                                                                       EXHIBIT C
 
                            RED BRICK SYSTEMS, INC.
 
                              AFFILIATE AGREEMENT
 
    This AFFILIATE AGREEMENT (the "Agreement") is made and entered into as of
October 7, 1998, between Informix Corporation, a Delaware corporation (the
"Parent"), and the undersigned stockholder (the "Affiliate") of Red Brick
Systems, Inc., a Delaware corporation (the "Company").
 
                                    RECITALS
 
    A.  The Parent, the Company, and IC Merger Corporation, a Delaware
corporation ("Sub"), have entered into an Agreement and Plan of Reorganization
(the "Merger Agreement") dated as of October   , 1998 pursuant to which Sub will
merge with and into the Company (the "Merger"), and the Company will become a
subsidiary of Parent (capitalized terms not otherwise defined herein shall have
the meanings ascribed to them in the Merger Agreement);
 
    B.  Pursuant to the Merger, at the Effective Time, outstanding shares of
Company Common Stock, including any shares owned by Affiliate, will be converted
into the right to receive shares of Parent Common Stock;
 
    C.  The execution and delivery of this Agreement by the Affiliate is a
material inducement to Parent to enter into the Merger Agreement;
 
    D.  It is intended that the Merger will constitute a reorganization within
the meaning of Section 368(a) of the Internal Revenue Code of 1986 as amended
(the "Code"), and that it will be a condition to the effectiveness of the Merger
that legal counsel for each of the Company and Parent deliver written opinions
to such effect;
 
    E.  The Affiliate has been advised that Affiliate may be deemed to be an
"affiliate" of the Company, as the term "affiliate" is used for purposes of
paragraphs (c) and (d) of Rule 145 of the Rules and Regulations (the "Rules and
Regulations") of the Securities and Exchange Commission (the "Commission"), as
amended, although nothing contained herein shall be construed as an admission by
Affiliate that Affiliate is in fact an "affiliate" of the Company.
 
                                   AGREEMENT
 
    NOW, THEREFORE, intending to be legally bound, the parties hereby agree as
follows:
 
    1.  COMPLIANCE WITH RULE 145 AND THE SECURITIES ACT.
 
    (a) The Affiliate has been advised that (i) the issuance of shares of Parent
Common Stock in connection with the Merger is expected to be effected pursuant
to a Registration Statement on Form S-4 to be filed with the Commission to
register the shares of Parent Common Stock under the Securities Act of 1933, as
amended (the "Securities Act"), and as such will not be deemed "restricted
securities" within the meaning of Rule 144 promulgated under the Securities Act,
and resale of such shares will not be subject to any restrictions other than as
set forth in Rule 145 under the Securities Act (which will not apply if such
shares are otherwise transferred pursuant to an effective registration statement
under the Securities Act or an appropriate exemption from registration), and
(ii) the Affiliate may be deemed to be an "affiliate" of the Company within the
meaning of the Securities Act and, in particular, Rule 145 promulgated
thereunder. Affiliate accordingly agrees not to sell, transfer, or otherwise
dispose of any Parent Common Stock issued to the Affiliate in the Merger unless
(i) such sale, transfer or other disposition is made in conformity with the
requirements of Rule 145(d) promulgated under the Securities Act; (ii) such
sale, transfer or other disposition is made pursuant to an effective
registration statement under the Securities Act; or (iii) the Affiliate delivers
to Parent a written opinion of counsel, reasonably acceptable to Parent in form
and
 
                                       2
<PAGE>
substance, that such sale, transfer, or other disposition is otherwise exempt
from registration under the Securities Act. In connection with the obligations
of the Affiliate hereunder, Parent agrees to file all reports required under the
Exchange Act to satisfy the requirements of Rule 144(c) as long as the Affiliate
shall be subject to the requirements of Rule 145.
 
    (b) Parent will give stop transfer instructions to its transfer agent with
respect to any Parent Common Stock received by Affiliate pursuant to the Merger,
and there will be placed on the certificates representing such Common Stock, or
any substitutions therefor, a legend stating in substance:
 
    "The shares represented by this certificate were issued in a transaction to
    which Rule 145 applies and may only be transferred in conformity with Rule
    145(d), pursuant to an effective registration statement under the Securities
    Act of 1933, as amended, or in accordance with a written opinion of counsel,
    reasonably acceptable to the issuer in form and substance, that such
    transfer is exempt from registration under the Securities Act of 1933, as
    amended."
 
    The foregoing legend shall be removed (by delivery of a substitute
certificate without such legend) if the Affiliate delivers to Parent (i)
satisfactory written evidence that the shares have been sold in compliance with
Rule 145 (in which case, the substitute certificate will be issued in the name
of the transferee) or (ii) an opinion of counsel, in form and substance
reasonably satisfactory to Parent, to the effect that public sale of the shares
by the holder thereof is no longer subject to Rule 145.
 
    2.  SHARE OWNERSHIP.  The Affiliate is the beneficial owner of that number
of shares of Company Common Stock (including shares issuable upon exercise of
stock options and warrants) as set forth on the signature page hereto (the
"Company Securities"). Except for the Company Securities, the Affiliate does not
beneficially own any shares of Company Common Stock or any other equity
securities of the Company or any options, warrants, or other rights to acquire
any equity securities of the Company.
 
    3.  MISCELLANEOUS.
 
    (a) For the convenience of the parties hereto, this Agreement may be
executed in one or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.
 
    (b) This Agreement shall be enforceable by, and shall inure to the benefit
of and be binding upon, the parties hereto and their respective successors and
assigns. As used herein, the term "successors and assigns" shall mean, where the
context so permits, heirs, executors, administrators, trustees and successor
trustees, and personal and other representatives.
 
    (c) This Agreement shall be governed by and construed, interpreted and
enforced in accordance with the internal laws of the State of California.
 
    (d) If a court of competent jurisdiction determines that any provision of
this Agreement is not enforceable or enforceable only if limited in time or
scope, this Agreement shall continue in full force and effect with such
provision stricken or so limited.
 
    (e) Counsel to the parties to the Merger Agreement shall be entitled to rely
upon this Agreement as appropriate.
 
    (f) This Agreement shall not be modified or amended, or any right hereunder
waived or any obligation excused, except by a written agreement signed by both
parties.
 
               [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]
 
                                       3
<PAGE>
    IN WITNESS WHEREOF, the parties have executed this Affiliate Agreement as of
the date set forth on the first page of this Agreement.
 
                                          INFORMIX CORPORATION
 
                                          By:___________________________________
                                          Name: Robert J. Finocchio, Jr.
                                          Title: President and Chief Executive
                                          Office
 
                                          AFFILIATE
 
                                          ______________________________________
                                          Name:
                                          Title:
 
                                          Company shares beneficially owned:
 
                                          ______________ shares of Common Stock
 
                                          Company shares subject to outstanding
                                          options:
 
                                          ______________ shares of Common Stock
 
                                          Company shares subject to outstanding
                                          warrants:
 
                                          ______________ shares of Common Stock
 
                           ***AFFILIATE AGREEMENT***
 
                                       4
<PAGE>
                                  EXHIBIT D-1
                    PERSONS TO SIGN NONCOMPETITION AGREEMENT
 
Ron Barale
Peggy DeLeon
Lawrence Howard
Andrew W. Priest
Paul Rodwick
Kristi L. Smith
<PAGE>
                                  EXHIBIT D-2
                        FORM OF NONCOMPETITION AGREEMENT
<PAGE>
                                                                     EXHIBIT D-2
 
                            NONCOMPETITION AGREEMENT
 
    This NONCOMPETITION AGREEMENT is being executed and delivered as of October
7, 1998 by                    (the "Stockholder") in favor of and for the
benefit of Informix Corporation, a Delaware corporation ("Parent"), and Red
Brick Systems, Inc., a Delaware corporation (the "Company").
 
                                    RECITALS
 
    A.  As an employee and stockholder and/or optionholder of the Company,
Stockholder has obtained and will obtain extensive and valuable knowledge and
information concerning the business of the Company (including confidential
information relating to the Company and its operations, assets, contracts,
customers, personnel, plans and prospects).
 
    B.  Contemporaneously with the execution and delivery of this Noncompetition
Agreement, the Company is entering into an Agreement and Plan of Reorganization
with Parent and a subsidiary of Parent (the "Reorganization Agreement"), which
provides (subject to the conditions set forth therein) for the merger of
Parent's subsidiary into the Company (the "Merger"). It is contemplated that, as
a result of the Merger, the Company will become a wholly-owned subsidiary of
Parent, and Stockholder will receive shares of common stock of Parent in
exchange for Stockholder's shares of common stock of the Company.
 
    C.  In connection with the Merger (and as a condition to entering into the
Reorganization Agreement and consummating the Merger), and to more fully secure
unto Parent the benefits of the Merger, Parent has requested that Stockholder
enter into this Noncompetition Agreement; and Stockholder is entering into this
Noncompetition Agreement in order to induce Parent to enter into the
Reorganization Agreement and consummate the Merger.
 
    D.  The Company has conducted, is conducting and will continue to conduct
its businesses on a worldwide basis.
 
                                   AGREEMENT
 
    In order to induce Parent to enter into the Reorganization Agreement and
consummate the Merger, and in consideration of the issuance and delivery to
Stockholder of shares of common stock of Parent pursuant to the Reorganization
Agreement, Stockholder agrees as follows:
 
    1.  ACKNOWLEDGMENTS BY STOCKHOLDER.  Stockholder acknowledges that the
promises and restrictive covenants that Stockholder is providing in this
Noncompetition Agreement are reasonable and necessary to the protection of
Parent's legitimate interests in its acquisition of the Company (including the
Company's goodwill) pursuant to the Reorganization Agreement. Stockholder
acknowledges that, in connection with the consummation of the Merger, all of the
Stockholder's shares of stock of the Company will be exchanged for shares of
common stock of Parent.
 
    2.  NONCOMPETITION.  During the Restriction Period (as defined below),
Stockholder shall not (other than in connection with employment with the
Company, Parent, their successors, or assigns):
 
    (a) be or become an officer, director, stockholder, owner, affiliate,
salesperson, co-owner, partner, trustee, promoter, technician, engineer,
analyst, employee, agent, representative, supplier, consultant, advisor or
manager of or to, or otherwise acquire or hold any interest in, any person or
entity that competes in the market for data warehousing software applications
(including, without limitation, related client/server relational database
management applications) for or on behalf of Oracle, IBM, Microsoft, Sybase,
Teradata/NCR, Broadbase, Platinum Software, Information Advantage,
Arbor/Hyperion or Microstrategy; or
 
                                       2
<PAGE>
    (b) provide any service (as an employee, consultant or otherwise), support,
product or technology to any person or entity, if such service, support, product
or technology involves or relates to software development in the market for data
warehousing software applications (including, without limitation, related
client/server relational database management applications) for or on behalf of
Oracle, IBM, Microsoft, Sybase, Teradata/NCR, Broadbase, Platinum Software,
Information Advantage, Arbor/Hyperion or Microstrategy;
 
PROVIDED, HOWEVER, that nothing in this Section 2 shall prevent Stockholder from
owning as a passive investment less than 1% of the outstanding shares of the
capital stock of a publicly-held Company if (A) such shares are actively traded
on an established national securities market in the United States and (B)
Stockholder is not otherwise associated directly or indirectly with such
corporation or any affiliate of such corporation; PROVIDED, FURTHER, that
nothing in this Section 2 shall prevent Stockholder from continuing a
previously-established employment relationship following the acquisition of the
employer by an entity identified in subsections 2(a) and 2(b) above; and
PROVIDED, FURTHER, that nothing in this Section 2 shall prevent Stockholder from
entering into arms length reseller or marketing transactions with an entity
identified in subsections 2(a) and 2(b) above.
 
    "Restriction Period" as used herein shall mean the period commencing on the
Effective Date and ending on the date that is 12 months from the Effective Date.
 
    3.  NONSOLICITATION.  Stockholder further agrees that Stockholder will not:
 
    (a) personally or through others, encourage, induce, attempt to induce,
solicit or attempt to solicit (on Stockholder's own behalf or on behalf of any
other person or entity) during the Restriction Period any employee of the
Company, Parent or any of Parent's subsidiaries to leave his or her employment
with the Company, Parent or any of Parent's subsidiaries;
 
    (b) employ, or permit any entity over which Stockholder exercises voting
control to employ, during the Restriction Period any person who shall have
voluntarily terminated his or her employment with the Company, Parent or any of
Parent's subsidiaries, provided, however, that any such person may be so
employed six months following that individual's termination of employment with
the Company, Parent or any of Parent's subsidiaries; or
 
    (c) personally or through others, interfere or attempt to interfere in a
material manner (other than through legitimate business competition) with the
relationship or prospective relationship of the Company, Parent or any of
Parent's subsidiaries with any person or entity that is, was or is expected to
become a customer or client of the Company, Parent or any of Parent's
subsidiaries.
 
    4.  SPECIFIC PERFORMANCE.  Stockholder agrees that in the event of any
breach by Stockholder of any covenant, obligation or other provision contained
in this Noncompetition Agreement, Parent and the Company shall be entitled (to
the extent permitted by applicable law in addition to any other remedy that may
be available to them including but not limited to a claim for damages based on
the stock and cash consideration paid to Stockholder by Parent) to the extent
permitted by applicable law (a) a decree or order of specific performance to
enforce the observance and performance of such covenant, obligation or other
provision, and (b) an injunction restraining such breach or threatened breach.
 
    5.  NON-EXCLUSIVITY.  The rights and remedies of Parent and the Company
hereunder are not exclusive of or limited by any other rights or remedies which
Parent or the Company may have, whether at law, in equity, by contract or
otherwise, all of which shall be cumulative (and not alternative). Without
limiting the generality of the foregoing, the rights and remedies of Parent and
the Company hereunder, and the obligations and liabilities of Stockholder
hereunder, are in addition to their respective rights, remedies, obligations and
liabilities under the law of unfair competition, misappropriation of trade
secrets and the like.
 
                                       3
<PAGE>
    6.  NOTICES.  Any notice or other communication required or permitted to be
delivered to Stockholder, the Company or Parent under this Noncompetition
Agreement shall be in writing and shall be deemed properly delivered, given and
received when delivered (by hand, by registered mail, by courier or express
delivery service or by facsimile) to the address or facsimile telephone number
set forth beneath the name of such party below (or to such other address or
facsimile telephone number as such party shall have specified in a written
notice delivered in accordance with this Section 7):
 
<TABLE>
<S>               <C>
IF TO PARENT:     Informix Corporation
                  4100 Bohannon Drive
                  Menlo Park, California 94025
                  Attention: General Counsel
                  Facsimile No.: (650) 926-6300
 
IF TO             At the address provided by
STOCKHOLDER:      Stockholder to Parent in writing.
</TABLE>
 
    7.  SEVERABILITY.  If any provision of this Noncompetition Agreement or any
part of any such provision is held under any circumstances to be invalid or
unenforceable in any jurisdiction, then (a) such provision or part thereof
shall, with respect to such circumstances and in such jurisdiction, be deemed
amended to conform to applicable laws so as to be valid and enforceable to the
fullest possible extent, (b) the invalidity or unenforceability of such
provision or part thereof under such circumstances and in such jurisdiction
shall not affect the validity or enforceability of such provision or part
thereof under any other circumstances or in any other jurisdiction, and (c) such
invalidity of enforceability of such provision or part thereof shall not affect
the validity or enforceability of the remainder of such provision or the
validity or enforceability of any other provision of this Noncompetition
Agreement. Each provision of this Noncompetition Agreement is separable from
every other provision of this Noncompetition Agreement, and each part of each
provision of this Noncompetition Agreement is separable from every other part of
such provision.
 
    8.  GOVERNING LAW.  This Noncompetition Agreement shall be construed in
accordance with, and governed in all respects by, the laws of the State of
California (without giving effect to principles of conflicts of laws).
 
    9.  WAIVER.  No failure on the part of Parent or the Company to exercise any
power, right, privilege or remedy under this Noncompetition Agreement, and no
delay on the part of Parent or the Company in exercising any power, right,
privilege or remedy under this Noncompetition Agreement, shall operate as a
waiver of such power, right, privilege or remedy; and no single or partial
exercise of any such power, right, privilege or remedy shall preclude any other
or further exercise thereof or of any other power, right, privilege or remedy.
Neither Parent nor the Company shall be deemed to have waived any claim arising
out of this Noncompetition Agreement, or any power, right, privilege or remedy
under this Noncompetition Agreement, unless the waiver of such claim, power,
right, privilege or remedy is expressly set forth in a written instrument duly
executed and delivered on behalf of such party; and any such waiver shall not be
applicable or have any effect except in the specific instance in which it is
given.
 
    10.  CAPTIONS.  The captions contained in this Noncompetition Agreement are
for convenience of reference only, shall not be deemed to be a part of this
Noncompetition Agreement and shall not be referred to in connection with the
construction or interpretation of this Noncompetition Agreement.
 
    11.  FURTHER ASSURANCES.  Stockholder shall execute and/or cause to be
delivered to the Company and Parent such instruments and other documents and
shall take such other actions as Company and Parent may reasonably request to
effectuate the intent and purposes of this Noncompetition Agreement.
 
    12.  ENTIRE AGREEMENT.  This Noncompetition Agreement, and the other
agreements referred to herein set forth the entire understanding of Stockholder,
the Company and Parent relating to the subject
 
                                       4
<PAGE>
matter hereof and thereof and supersede all prior agreements and understandings
between any of such parties relating to the subject matter hereof and thereof.
 
    13.  AMENDMENTS.  This Noncompetition Agreement may not be amended,
modified, altered, or supplemented other than by means of a written instrument
duly executed and delivered on behalf of Parent and Stockholder.
 
    14.  ASSIGNMENT.  This Noncompetition Agreement and all obligations
hereunder are personal to Stockholder and may not be transferred or assigned by
Stockholder at any time. Parent may assign its rights under this Noncompetition
Agreement to any entity in connection with any sale or transfer of all or
substantially all of Parent's assets to such entity.
 
    15.  BINDING NATURE.  Subject to Section 15, this Noncompetition Agreement
will be binding upon Stockholder and Stockholder's representatives, executors,
administrators, estate, heirs, successors and assigns, and will inure to the
benefit of Parent and the Company and their respective successors and assigns.
 
    16.  ARBITRATION.
 
    (a) ARBITRATION Except as noted in 16(b) below, the Stockholder and Parent
agree that any and all past or present dispute or controversy arising out of or
relating to this Agreement shall be subject to binding arbitration held in San
Mateo County, California, under the Arbitration Rules set forth in California
Code of Civil Procedure Section 1280 through 1294.2, including Section 1283.05
(the "Rules") and pursuant to California law. Each party shall be allowed to
take three (3) depositions and to make a reasonable request for documents. The
arbitrator shall be knowledgeable in the industry and shall be mutually agreed
upon by the Stockholder and the Parent. If an arbitrator cannot be mutually
agreed upon, each party shall select an arbitrator and the two arbitrators shall
select a third to constitute an arbitration panel. Any arbitration shall take
place within sixty (60) days of the intial demand or, if the parties are unable
to agree on a mutual arbitrator, then within sixty (60) days of the date the
three person panel is chosen, except if the arbitrator(s) are unable to hold the
arbitration within such time period then the arbitration shall be held based
upon the availability and schedule of such arbitrator(s).
 
    (b) SPECIFIC PERFORMANCE AND EQUITABLE REMEDIES. Stockholder agrees that if
he breaches any Section of this Agreement, Parent will have available, in
addition to any rights under this Arbitration Provision, the right to obtain an
injunction from a Court of competent jurisdiction restraining such breach or
threatened breach and to specific performance, as noted in Paragraph 4 above.
Stockholder further agrees that no bond or other security shall be required in
obtaining such equitable relief and hereby consents to the issuance of such
injunction and to the ordering of specific performance.
 
    17.  EFFECTIVENESS.  This Agreement shall become effective upon the Closing,
as defined in the Merger Agreement, and, if the Closing does not occur prior to
Feburary 28, 1999, this Agreement shall immediately terminate and be of
nofurther force or effect.
 
    IN WITNESS WHEREOF, the undersigned has executed this Noncompetition
Agreement as of the date first above written.
 
                                          ______________________________________
                                          Name:
 
                                       5

<PAGE>
                                  EXHIBIT 99.2
                            FORM OF VOTING AGREEMENT
<PAGE>
                                                                    EXHIBIT 99.2
 
                                VOTING AGREEMENT
 
    This Voting Agreement ("Agreement") is made and entered into as of October
7, 1998, between Informix Corporation, a Delaware corporation ("Parent"), and
the undersigned stockholder ("Stockholder") of Red Brick Systems, Inc., a
Delaware corporation (the "Company").
 
                                    RECITALS
 
    A. Concurrently with the execution of this Agreement, Parent, Company and IC
Merger Corporation, a Delaware corporation and a wholly owned subsidiary of
Parent ("Merger Sub"), have entered into an Agreement and Plan of Reorganization
of even date herewith (the "Merger Agreement") which provides for the merger
(the "Merger") of Merger Sub with and into the Company. Pursuant to the Merger,
shares of Common Stock of the Company will be converted into Common Stock of
Parent on the basis described in the Merger Agreement.
 
    B.  The Stockholder is the record holder and beneficial owner (as defined in
Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange
Act")) of such number of shares of the outstanding Common Stock of the Company
as is indicated on the final page of this Agreement (the "Shares").
 
    C.  Parent desires the Stockholder to agree, and the Stockholder is willing
to agree, not to transfer or otherwise dispose of any of the Shares, or any
other shares of capital stock of the Company acquired hereafter and prior to the
Expiration Date (as defined in Section 1.1 below, except as otherwise permitted
hereby), and to vote the Shares and any other such shares of capital stock of
the Company so as to facilitate consummation of the Merger.
 
    NOW, THEREFORE, in consideration of the covenants, promises and
representations set forth herein, the parties agree as follows:
 
    1.  AGREEMENT TO RETAIN SHARES.
 
        1.1  TRANSFER AND ENCUMBRANCE.  Stockholder agrees not to transfer
    (except as may be specifically required by court order), sell, exchange,
    pledge or otherwise dispose of or encumber any of the Shares or any New
    Shares as defined in Section 1.2 below, or to make any offer or agreement
    relating thereto, at any time prior to the Expiration Date. As used herein,
    the term "Expiration Date" shall mean the earlier to occur of (i) such date
    and time as the Merger shall become effective in accordance with the terms
    and provisions of the Merger Agreement and (ii) such date as the Merger
    Agreement shall be terminated pursuant to Article VII thereof.
 
        1.2  ADDITIONAL PURCHASES.  Stockholder agrees that any shares of
    capital stock of the Company that Stockholder purchases or with respect to
    which Stockholder otherwise acquires beneficial ownership (as such term is
    defined in Rule 13d-3 under the Exchange Act) after the execution of this
    Agreement and prior to the Expiration Date ("New Shares") shall be subject
    to the terms and conditions of this Agreement to the same extent as if they
    constituted Shares.
 
    2.  AGREEMENT TO VOTE SHARES.  At every meeting of the stockholders of the
Company called with respect to any of the following, and at every adjournment
thereof, and on every action or approval by written consent of the Stockholders
of the Company with respect to any of the following, Stockholder shall vote the
Shares and any New Shares: (i) in favor of approval of the Merger Agreement and
the Merger and any matter that could reasonably be expected to facilitate the
Merger; and (ii) against approval of any proposal made in opposition to or
competition with consummation of the Merger and against any merger,
consolidation, sale of assets, reorganization or recapitalization, with any
party other than with Parent and its affiliates and against any liquidation or
winding up of the Company (each of the foregoing is hereinafter
 
                                       2
<PAGE>
referred to as an "Opposing Proposal"). Stockholder agrees not to take any
actions contrary to Stockholder's obligations under this Agreement.
 
    3.  IRREVOCABLE PROXY.  Concurrently with the execution of this Agreement,
Stockholder agrees to deliver to Parent a proxy in the form attached hereto as
EXHIBIT A (the "Proxy"), which shall be irrevocable, with the total number of
shares of capital stock of the Company beneficially owned (as such term is
defined in Rule 13d-3 under the Exchange Act) by Stockholder set forth therein.
 
    4.  REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE
STOCKHOLDER.  Stockholder hereby represents, warrants and covenants to Parent as
follows:
 
        4.1  OWNERSHIP OF SHARES.  Stockholder (i) is the beneficial owner of
    the Shares, which at the date hereof and at all times up until the
    Expiration Date will be free and clear of any liens, claims, options,
    charges or other encumbrances; (ii) does not beneficially own any shares of
    capital stock of the Company other than the Shares (excluding shares as to
    which Stockholder currently disclaims beneficial ownership in accordance
    with applicable law); and (iii) has full power and authority to make, enter
    into and carry out the terms of this Agreement and the Proxy.
 
        4.2  NO PROXY SOLICITATIONS.  Stockholder will not, and will not permit
    any entity under Stockholder's control to: (i) solicit proxies or become a
    "participant" in a "solicitation" (as such terms are defined in Regulation
    14A under the Exchange Act) with respect to an Opposing Proposal or
    otherwise encourage or assist any party in taking or planning any action
    that would compete with, restrain or otherwise serve to interfere with or
    inhibit the timely consummation of the Merger in accordance with the terms
    of the Merger Agreement; (ii) initiate a Stockholders' vote or action by
    consent of the Company Stockholders with respect to an Opposing Proposal; or
    (iii) become a member of a "group" (as such term is used in Section 13(d) of
    the Exchange Act) with respect to any voting securities of the Company with
    respect to an Opposing Proposal. This provision shall not in any manner
    limit the Company's ability through its officers and directors to take
    action specifically permitted by the provisions of Section       of the
    Merger Agreement.
 
    5.  ADDITIONAL DOCUMENTS.  Stockholder hereby covenants and agrees to
execute and deliver any additional documents necessary or desirable, in the
reasonable opinion of Parent and Stockholder, as the case may be, to carry out
the intent of this Agreement.
 
    6.  CONSENT AND WAIVER.  Stockholder hereby gives any consents or waivers
that are reasonably required for the consummation of the Merger under the terms
of any agreements to which Stockholder is a party or pursuant to any rights
Stockholder may have.
 
    7.  TERMINATION.  This Agreement and the Proxy delivered in connection
herewith shall terminate and shall have no further force or effect as of the
Expiration Date.
 
    8.  MISCELLANEOUS.
 
        8.1  SEVERABILITY.  If any term, provision, covenant or restriction of
    this Agreement is held by a court of competent jurisdiction to be invalid,
    void or unenforceable, then the remainder of the terms, provisions,
    covenants and restrictions of this Agreement shall remain in full force and
    effect and shall in no way be affected, impaired or invalidated.
 
        8.2  BINDING EFFECT AND ASSIGNMENT.  This Agreement and all of the
    provisions hereof shall be binding upon and inure to the benefit of the
    parties hereto and their respective successors and permitted assigns, but,
    except as otherwise specifically provided herein, either this Agreement nor
    any of the rights, interests or obligations of the parties hereto may be
    assigned by either of the parties without prior written consent of the
    other.
 
        8.3  AMENDMENTS AND MODIFICATION.  This Agreement may not be modified,
    amended, altered or supplemented except upon the execution and delivery of a
    written agreement executed by the parties hereto.
 
                                       3
<PAGE>
        8.4  SPECIFIC PERFORMANCE; INJUNCTIVE RELIEF.  The parties hereto
    acknowledge that Parent will be irreparably harmed and that there will be no
    adequate remedy at law for a violation of any of the covenants or agreement
    of Stockholder set forth herein. Therefore, it is agreed that, in addition
    to any other remedies that may be available to Parent upon any such
    violation, Parent shall have the right to enforce such covenants and
    agreements by specific performance, injunctive relief or by any other means
    available to Parent at law or in equity.
 
        8.5  NOTICES.  All notices, requests, claims, demands and other
    communications hereunder shall be in writing and sufficient if delivered in
    person, by cable, telegram or telex, or sent by mail (registered or
    certified mail, postage prepaid, return receipt requested) or overnight
    courier (prepaid) to the respective parties as follows:
 
        If to Parent:
 
       Informix Corporation
       4100 Bohannon Drive
       Menlo Park, California 94025
       Attn: General Counsel
 
       With a copy to:
       Wilson Sonsini
       Goodrich & Rosati
       650 Page Mill Road
       Palo Alto, California 94304
       Attn: Martin W. Korman, Esq.
       Jeffrey A. Herbst, Esq.
 
       If to the Stockholder:
       At the address provided by Stockholder to Parent in writing
 
       With a copy to:
 
       Gunderson Dettmer
       155 Constitution Drive
       Menlo Park, California 94025
       Attn:  Daniel E. O'Connor, Esq.
 
    or to such other address as any party may have furnished to the other in
writing in accordance herewith, except that notices of change of address shall
only be effective upon receipt.
 
        8.6  GOVERNING LAW.  This Agreement shall be governed by, and construed
    and enforced in accordance with, the internal laws of the State of
    California.
 
        8.7  ENTIRE AGREEMENT.  This Agreement contains the entire understanding
    of the parties in respect of the subject matter hereof, and supersedes all
    prior negotiations and understandings between the parties with respect to
    such subject matter.
 
        8.8  COUNTERPARTS.  This Agreement may be executed in several
    counterparts, each of which shall be an original, but all of which together
    shall constitute one and the same agreement.
 
        8.9  EFFECT OF HEADINGS.  The section headings herein are for
    convenience only and shall not affect the construction of interpretation of
    this Agreement.
 
                                       4
<PAGE>
    IN WITNESS WHEREOF, the parties have caused this Voting Agreement to be duly
executed on the date and year first above written.
 
                                          INFORMIX CORPORATION
 
                                          By:
                                             -----------------------------------
 
                                               Name:  Robert J. Finocchio, Jr.
 
                                                 Title:  PRESIDENT AND CHIEF
                                                      EXECUTIVE OFFICER
 
                                          STOCKHOLDER
 
                                          --------------------------------------
 
                                          Name:
 
                                          Stockholder's Address for Notice:
 
                                          --------------------------------------
 
                                          --------------------------------------
 
                                          --------------------------------------
 
                                          Shares beneficially owned:
 
                                                   shares of Common Stock
 
                             ***VOTING AGREEMENT***
 
                                       5
<PAGE>
                                   EXHIBIT A
                               IRREVOCABLE PROXY
 
    The undersigned Stockholder of Red Brick Systems, Inc., a Delaware
corporation ("Company"), hereby irrevocably appoints the directors on the Board
of Directors of Informix Corporation, a Delaware corporation ("Parent"), and
each of them, as the sole and exclusive attorneys and proxies of the
undersigned, with full power of substitution and resubstitution, to the full
extent of the undersigned's rights with respect to the shares of capital stock
of Company beneficially owned by the undersigned, which shares are listed on the
final page of this Proxy (the "Shares"), and any and all other shares or
securities issued or issuable in respect thereof on or after the date hereof,
until such time as that certain Agreement and Plan of Reorganization dated as of
October 7, 1998 (the "Merger Agreement"), among Parent, IC Merger Corporation, a
Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), and
Company, shall be terminated in accordance with its terms or the Merger (as
defined in the Merger Agreement) is effective. Upon the execution hereof, all
prior proxies given by the undersigned with respect to the Shares and any and
all other shares or securities issued or issuable in respect thereof on or after
the date hereof are hereby revoked and no subsequent proxies will be given.
 
    This proxy is irrevocable, is granted pursuant to the Voting Agreement dated
as of October 7, 1998 between Parent and the undersigned Stockholder (the
"Voting Agreement"), and is granted in consideration of Parent entering into the
Merger Agreement. The attorneys and proxies named above will be empowered at any
time prior to termination of the Merger Agreement to exercise all voting and
other rights (including, without limitation, the power to execute and deliver
written consents with respect to the Shares) of the undersigned at every annual,
special or adjourned meeting of Company stockholders, and in every written
consent in lieu of such a meeting, or otherwise, in favor of approval of the
Merger and the Merger Agreement and any matter that could reasonably be expected
to facilitate the Merger, and against any proposal made in opposition to or
competition with the consummation of the Merger and against any merger,
consolidation, sale of assets, reorganization or recapitalization of Company
with any party other than Parent and its affiliates and against any liquidation
or winding up of Company.
 
    The attorneys and proxies named above may only exercise this proxy to vote
the Shares subject hereto at any time prior to termination of the Merger
Agreement at every annual, special or adjourned meeting of the Stockholders of
Company and in every written consent in lieu of such meeting, in favor of
approval of the Merger and the Merger Agreement and any matter that could
reasonably be expected to facilitate the Merger, and against any merger,
consolidation, sale of assets, reorganization or recapitalization of Company
with any party other than Parent and its affiliates, and against any liquidation
or winding up of Company, and may not exercise this proxy on any other matter.
The undersigned Stockholder may vote the Shares on all other matters.
 
    Any obligation of the undersigned hereunder shall be binding upon the
successors and assigns of the undersigned.
 
    This proxy is irrevocable.
 
Dated: October 7, 1998
 
    Signature of Stockholder: __________________________________________________
 
    Print Name of Stockholder: _________________________________________________
 
    Shares beneficially owned:
 
                             ____________________________ shares of Common Stock

<PAGE>
                                  EXHIBIT 99.3
                         FORM OF STOCK OPTION AGREEMENT
<PAGE>
                                                                    EXHIBIT 99.3
 
                             STOCK OPTION AGREEMENT
 
    THIS STOCK OPTION AGREEMENT dated as of October 7, 1998 (the "AGREEMENT") is
entered into by and between Red Brick Systems, Inc., a Delaware corporation
("RED BRICK") and Informix Corporation, a Delaware corporation ("INFORMIX").
Capitalized terms used in this Agreement but not defined herein shall have the
meanings ascribed thereto in the Merger Agreement (as defined below).
 
                                    RECITALS
 
    A. Concurrently with the execution and delivery of this Agreement, Red
Brick, Informix and IC Merger Corporation, a Delaware corporation and a wholly
owned subsidiary of Informix ("SUB"), are entering into an Agreement and Plan of
Reorganization (the "MERGER AGREEMENT"), which provides that, among other
things, upon the terms and subject to the conditions thereof, Red Brick and
Informix will enter into a business combination transaction (the "MERGER").
 
    B.  As a condition to Informix's willingness to enter into the Merger
Agreement, Informix has requested that Red Brick agree, and Red Brick has so
agreed, to grant to Informix an option to acquire shares of Red Brick's Common
Stock, $0.0001 par value, upon the terms and subject to the conditions set forth
herein.
 
                                   AGREEMENT
 
    NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants and agreements set forth herein and in the Merger Agreement and for
other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties hereto agree as follows:
 
    1.  GRANT OF OPTION
 
    Red Brick hereby grants to Informix an irrevocable option (the "OPTION") to
acquire up to a number of shares of the Common Stock, $0.0001 par value, of Red
Brick ("RED BRICK SHARES"), including the associated rights (the "Rights") to
purchase shares of Red Brick Preferred Stock pursuant to the Rights Agreement,
dated as of July 21, 1997, between Red Brick and Harris Trust and Savings Bank,
as Rights Agent (the "Rights Agreement"), equal to 19.9% of the issued and
outstanding shares of capital stock of Red Brick as of the first date, if any,
upon which an Exercise Event (as defined in Section 2(a) below) shall occur (the
"OPTION SHARES"), in the manner set forth below by paying cash at a price of
$2.40 per share (the "EXERCISE PRICE"). All references in this Agreement to Red
Brick Shares issued to Informix hereunder shall be deemed to include the Rights
(subject to the terms of the Rights Agreement).
 
    2.  EXERCISE OF OPTION; MAXIMUM PROCEEDS
 
    (a) For all purposes of this Agreement, an "EXERCISE EVENT" shall have
occurred (i) immediately prior to the earlier of (x) the consummation of, or (y)
the record date, if any, for a meeting of Red Brick's stockholders with regard
to, an Acquisition Proposal for an Acquisition Transaction with respect to Red
Brick with any party other than Informix (or an affiliate of Informix), (ii)
immediately prior to the effectiveness of a Change of Control (as defined below)
of the Red Brick Board of Directors as a result of an election contest within
the meaning of Rule 14a-11 of the Exchange Act; or (iii) upon termination of the
Merger Agreement pursuant to Section 7.1(b), (e) or (f). For purposes of this
Agreement, a "Change of Control" of the Red Brick Board of Directors shall mean
a change in the composition of such Board as a result of which fewer than a
majority of the incumbent directors are directors who either (A) had been
directors of Red Brick at least eighteen (18) months prior to such change or (B)
were elected or nominated for election to the Red Brick Board with the
affirmative votes of at least a majority of the directors who had been directors
of Red Brick at least eighteen (18) months prior to such change and who were
still serving as directors at the time of the election or nomination.
 
                                       2
<PAGE>
    (b) Informix may deliver to Red Brick a written notice (an "EXERCISE
NOTICE") specifying that it wishes to exercise and close a purchase of Option
Shares upon the occurrence of an Exercise Event and specifying the total number
of Option Shares it wishes to acquire (i) upon public disclosure of an
Acquisition Proposal for an Acquisition Transaction with respect to Red Brick,
with any party other than Informix (or an affiliate of Informix) (ii) upon the
commencement of an election contest within the meaning of Rule 14a-11 of the
Exchange Act with the purpose of seeking to effect a Change of Control of the
Red Brick Board of Directors, or (iii) upon termination of the Merger Agreement
pursuant to Section 7.1(b), (e) or (f) (the events specified in clauses (i),
(ii) or (iii) of this sentence being referred to herein as "CONDITIONAL EXERCISE
EVENTS"). At any time after delivery of an Exercise Notice, unless such Exercise
Notice is withdrawn by Informix, the closing of a purchase of Option Shares (a
"CLOSING") specified in such Exercise Notice shall take place at the principal
offices of Red Brick upon the occurrence of an Exercise Event or at such later
date prior to the termination of the Option as may be designated by Informix in
writing. In the event that no Exercise Event shall occur prior to termination of
the Option, such Exercise Notice shall be void and of no further force and
effect.
 
    (c) The Option shall terminate upon the earliest of (i) the Effective Time,
(ii) 12 months following the termination of the Merger Agreement; PROVIDED,
HOWEVER, that if the Option is exercisable but cannot be exercised by reason of
any applicable government order or because the waiting period related to the
issuance of the Option Shares under the HSR Act shall not have expired or been
terminated, or because any other condition to closing has not been satisfied,
then the Option shall not terminate until the tenth business day after such
impediment to exercise shall have been removed or shall have become final and
not subject to appeal.
 
    (d) If Informix receives proceeds in connection with any sales or other
dispositions of Option Shares, plus any dividends received by Informix declared
on Option Shares (including by exercising the Informix Put described in Section
6(a) hereof), of more than the sum of (x) $2,000,000 plus (y) the Exercise Price
multiplied by the number of Red Brick Shares purchased by Informix pursuant to
the Option, then all proceeds to Informix in excess of such sum shall be
remitted by Informix to Red Brick.
 
    3.  CONDITIONS TO CLOSING
 
    The obligation of Red Brick to issue Option Shares to Informix hereunder is
subject to the conditions that (a) any waiting period under the HSR Act
applicable to the issuance of the Option Shares hereunder shall have expired or
been terminated; (b) all material consents, approvals, orders or authorizations
of, or registrations, declarations or filings with, any Federal, state or local
administrative agency or commission or other Federal state or local governmental
authority or instrumentality, if any, required in connection with the issuance
of the Option Shares hereunder shall have been obtained or made, as the case may
be; and (c) no preliminary or permanent injunction or other order by any court
of competent jurisdiction prohibiting or otherwise restraining such issuance
shall be in effect. It is understood and agreed that at any time during which
Informix shall be entitled to deliver to Red Brick an Exercise Notice, the
parties will use their respective best efforts to satisfy all conditions to
Closing, so that a Closing may take place as promptly as practicable, and in any
event, upon the occurrence of an Exercise Event.
 
    4.  CLOSING
 
    At any Closing, (a) Red Brick shall deliver to Informix a single certificate
in definitive form representing the number of Red Brick Shares designated by
Informix in its Exercise Notice consistent with this Agreement, such certificate
to be registered in the name of Informix and to bear the legend set forth in
Section 10 hereof, against delivery of (b) payment by Informix to Red Brick of
the aggregate purchase price for the Red Brick Shares so designated and being
purchased by delivery of a certified check or bank check in immediately
available funds.
 
    5.  REPRESENTATIONS AND WARRANTIES OF RED BRICK
 
    Red Brick represents and warrants to Informix that (a) Red Brick is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has the corporate power
 
                                       3
<PAGE>
and authority to enter into this Agreement and to carry out its obligations
hereunder; (b) the execution and delivery of this Agreement by Red Brick and
consummation by Red Brick of the transactions contemplated hereby have been duly
authorized by all necessary corporate action on the part of Red Brick and no
other corporate proceedings on the part of Red Brick are necessary to authorize
this Agreement or any of the transactions contemplated hereby; (c) this
Agreement has been duly executed and delivered by Red Brick and constitutes a
legal, valid and binding obligation of Red Brick and, assuming this Agreement
constitutes a legal, valid and binding obligation of Informix, is enforceable
against Red Brick in accordance with its terms; (d) except for any filings
required under the HSR Act, Red Brick has taken all necessary corporate and
other action to authorize and reserve for issuance and to permit it to issue
upon exercise of the Option, and at all times from the date hereof until the
termination of the Option will have reserved for issuance, a sufficient number
of unissued Red Brick Shares for Informix to exercise the Option in full and
will take all necessary corporate or other action to authorize and reserve for
issuance all additional Red Brick Shares or other securities which may be
issuable pursuant to Section 8(a) upon exercise of the Option, all of which,
upon their issuance and delivery in accordance with the terms of this Agreement,
will be validly issued, fully paid and nonassessable; (e) upon delivery of the
Red Brick Shares and any other securities to Informix upon exercise of the
Option, Informix will acquire such Red Brick Shares or other securities free and
clear of all material claims, liens, charges, encumbrances and security
interests of any kind or nature whatsoever, excluding those imposed by Informix;
(f) the execution and delivery of this Agreement by Red Brick do not, and the
performance of this Agreement by Red Brick will not, (i) violate the Certificate
of Incorporation or Bylaws of Red Brick, (ii) conflict with or violate any order
applicable to Red Brick or any of its subsidiaries or by which they or any of
their property is bound or affected or (iii) result in any breach of or
constitute a default (or an event which with notice or lapse of time or both
would become a default) under, or give rise to any right of termination,
amendment, acceleration or cancellation of, or result in the creation of a lien
or encumbrance on any property or assets of Red Brick or any of its subsidiaries
pursuant to, any contract or agreement to which Red Brick or any of its
subsidiaries is a party or by which Red Brick or any of its subsidiaries or any
of their property is bound or affected, except, in the case of clauses (ii) and
(iii) above, for violations, conflicts, breaches, defaults, rights of
termination, amendment, acceleration or cancellation, liens or encumbrances
which would not, individually or in the aggregate, have a Material Adverse
Effect on Red Brick; and (g) the execution and delivery of this Agreement by Red
Brick does not, and the performance of this Agreement by Red Brick will not,
require any consent, approval, authorization or permit of, or filing with, or
notification to, any Governmental Entity except pursuant to the HSR Act.
 
    6.  CERTAIN RIGHTS
 
    (a)  INFORMIX PUT.  Informix may deliver to Red Brick a written notice (a
"PUT NOTICE") at any time during which Informix may deliver an Exercise Notice
specifying that it wishes to sell the Option, to the extent not previously
exercised, at the price set forth in subparagraph (i) below (as limited by
subparagraph (iii) below), and the Option Shares, if any, acquired by Informix
pursuant thereto, at the price set forth in subparagraph (ii) below (as limited
by subparagraph (iii) below) (the "PUT"). At any time after delivery of a Put
Notice, unless such Put Notice is withdrawn by Informix, the closing of the Put
(the "PUT CLOSING") shall take place at the principal offices of Red Brick upon
the occurrence of an Exercise Event or at such later date prior to the
termination of the Option as may be designated by Informix in writing. In the
event that no Exercise Event shall occur prior to termination of the Option,
such Put Notice shall be void and of no further force and effect.:
 
        (i) The difference between the "MARKET/TENDER OFFER PRICE" for Red Brick
    Shares as of the date Informix gives notice of its intent to exercise its
    rights under this Section 6(a) (defined as the higher of (A) the highest
    price per share offered as of such date pursuant to any Acquisition
    Transaction which was made prior to such date and not terminated or
    withdrawn as of such date and (B) the highest closing sale price of Red
    Brick Shares on the Nasdaq National Market during the twenty (20) trading
    days ending on the trading day immediately preceding such date) and the
    Exercise Price, multiplied by the number of Red Brick Shares purchasable
    pursuant to the Option, but only if the Market/Tender
 
                                       4
<PAGE>
    Offer Price is greater than the Exercise Price. For purposes of determining
    the highest price offered pursuant to any Acquisition Transaction which
    involves consideration other than cash, the value of such consideration
    shall be equal to the higher of (x) if securities of the same class of the
    proponent as such consideration are traded on any national securities
    exchange or by any registered securities association, a value based on the
    closing sale price or asked price for such securities on their principal
    trading market on such date and (y) the value ascribed to such consideration
    by the proponent of such Acquisition Transaction, or if no such value is
    ascribed, a value determined in good faith by the Board of Directors of Red
    Brick.
 
        (ii) The Exercise Price paid by Informix for Red Brick Shares acquired
    pursuant to the Option PLUS the difference between the Market/Tender Offer
    Price and such Exercise Price (but only if the Market/Tender Offer Price is
    greater than the Exercise Price) multiplied by the number of Red Brick
    Shares so purchased. If Informix issued Informix Shares in connection with
    any exercise of the Option, the Exercise Price in connection with such
    exercise shall be calculated as set forth in the last sentence of Section 1
    as if Informix had exercised its right to pay cash instead of issuing
    Informix Shares.
 
       (iii) Notwithstanding subparagraphs (i) and (ii) above, pursuant to this
    Section 6 Red Brick shall not be required to pay Informix in excess of an
    aggregate of (A) (x) $2,000,000 PLUS (y) the Exercise Price paid by Informix
    for Red Brick Shares acquired pursuant to the Option and put to Red Brick
    pursuant to Section 6 minus (B) the gain received by Informix on sale(s) of
    Option Shares to third parties. The parties intend Informix profit received
    pursuant to this Option not to exceed $2,000,000 and Section 3(d) and
    Section 6(a)(iii) shall be read collectively to achieve such purpose.
 
    (b)  PAYMENT AND REDELIVERY OF OPTION OR SHARES.  At the Put Closing, Red
Brick shall pay the required amount to Informix in immediately available funds
and Informix shall surrender to Red Brick the Option and the certificates
evidencing the Red Brick Shares purchased by Informix pursuant thereto.
 
    7.  REGISTRATION RIGHTS
 
    (a) Following the termination of the Merger Agreement, Informix (sometimes
referred to herein as a "HOLDER") may by written notice (sometimes referred to
herein as the "REGISTRATION NOTICE") to Red Brick (the "REGISTRANT") request the
Registrant to register under the Securities Act all or any part of the shares
acquired by such Holder pursuant to this Agreement (the "REGISTRABLE
SECURITIES") in order to permit the sale or other disposition of such shares
pursuant to a BONA FIDE firm commitment underwritten public offering in which
the Holder and the underwriters shall effect as wide a distribution of such
Registrable Securities as is reasonably practicable and shall use reasonable
efforts to prevent any person or group from purchasing through such offering
shares representing more than 1% of the outstanding shares of Common Stock of
the Registrant on a fully diluted basis (a "PERMITTED OFFERING"); PROVIDED,
HOWEVER, that any such Registration Notice must relate to a number of shares
equal to at least 2% of the outstanding shares of Common Stock of the Registrant
on a fully diluted basis and that any rights to require registration hereunder
shall terminate with respect to any shares that may be sold pursuant to Rule
144(k) under the Securities Act. The Registration Notice shall include a
certificate executed by the Holder and its proposed managing underwriter, which
underwriter shall be an investment banking firm of internationally recognized
standing reasonably acceptable to the Company (the "MANAGER"), stating that (i)
the Holder and the Manager have a good faith intention to commence a Permitted
Offering and (ii) the Manager in good faith believes that, based on the then
prevailing market conditions, it will be able to sell the Registrable Securities
at a per share price equal to at least 80% of the per share average of the
closing sale prices of the Registrant's Common Stock on the Nasdaq National
Market for the twenty trading days immediately preceding the date of the
Registration Notice. The Registrant shall thereupon have the option exercisable
by written notice delivered to the Holder within ten business days after the
receipt of the Registration Notice, irrevocably to agree to purchase all or any
part of the Registrable Securities for cash at a price (the "OPTION PRICE" equal
to the product of (i) the number of Registrable Securities so purchased and (ii)
the per share average of the closing sale prices of the Registrant's Common
Stock on the Nasdaq National Market for the twenty trading days immediately
preceding the date of the Registration Notice. Any such purchase
 
                                       5
<PAGE>
of Registrable Securities by the Registrant hereunder shall take place at a
closing to be held at the principal executive offices of the Registrant or its
counsel at any reasonable date and time designated by the Registrant in such
notice within 10 business days after delivery of such notice. The payment for
the shares to be purchased shall be made by delivery at the time of such closing
of the Option Price in immediately available funds.
 
    (b) If the Registrant does not elect to exercise its option to purchase
pursuant to Section 7(a) with respect to all Registrable Securities, the
Registrant shall use all reasonable efforts to effect, as promptly as
practicable, the registration under the Securities Act of the unpurchased
Registrable Securities requested to be registered in the Registration Notice;
PROVIDED, HOWEVER, that (i) the Holder shall not be entitled to more than an
aggregate of two effective registration statements hereunder and (ii) the
Registrant will not be required to file any such registration statement during
any period of time (not to exceed 40 days after a Registration Notice in the
case of clause (A) below or 90 days after a Registration Notice in the case of
clauses (B) and (C) below) when (A) the Registrant is in possession of material
non-public information which it reasonably believes would be detrimental to be
disclosed at such time and, in the written opinion of counsel to such
Registrant, such information would have to be disclosed if a registration
statement were filed at that time; (B) such Registrant is required under the
Securities Act to include audited financial statements for any period in such
registration statement and such financial statements are not yet available for
inclusion in such registration statement; or (C) such Registrant determines, in
its reasonable judgment, that such registration would interfere with any
financing, acquisition or other material transaction involving the Registrant.
If consummation of the sale of any Registrable Securities pursuant to a
registration hereunder does not occur within 180 days after the filing with the
SEC of the initial registration statement therefor, the provisions of this
Section 7 shall again be applicable to any proposed registration, it being
understood that neither party shall be entitled to more than an aggregate of two
effective registration statements hereunder. The Registrant shall use all
reasonable efforts to cause any Registrable Securities registered pursuant to
this Section 7 to be qualified for sale under the securities or blue sky laws of
such jurisdictions as the Holder may reasonably request and shall continue such
registration or qualification in effect in such jurisdictions; PROVIDED,
HOWEVER, that the Registrant shall not be required to qualify to do business in,
or consent to general service of process in, any jurisdiction by reason of this
provision.
 
    (c) The registration rights set forth in this Section 7 are subject to the
condition that the Holder shall provide the Registrant with such information
with respect to such Holder's Registrable Securities, the plan for distribution
thereof, and such other information with respect to such Holder as, in the
reasonable judgment of counsel for the Registrant, is necessary to enable the
Registrant to include in a registration statement all material facts required to
be disclosed with respect to a registration thereunder.
 
    (d) A registration effected under this Section 7 shall be effected at the
Registrant's expense, except for underwriting discounts and commissions and the
fees and expenses of counsel to the Holder, and the Registrant shall use all
reasonable efforts to provide to the underwriters such documentation (including
certificates, opinions of counsel and "comfort" letters from auditors) as are
customary in connection with underwritten public offerings and as such
underwriters may reasonably require. In connection with any registration, the
Holder and the Registrant agree to enter into an underwriting agreement
reasonably acceptable to each such party, in form and substance customary for
transactions of this type with the underwriters participating in such offering.
 
    (e)  INDEMNIFICATION
 
    (i) The Registrant will indemnify the Holder, each of its directors and
officers and each person who controls the Holder within the meaning of Section
15 of the Securities Act, and each underwriter of the Registrant's securities,
with respect to any registration, qualification or compliance which has been
effected pursuant to this Agreement, against all expenses, claims, losses,
damages or liabilities (or actions in respect thereof), including any of the
foregoing incurred in settlement of any litigation, commenced or threatened,
arising out of or based on any untrue statement (or alleged untrue statement) of
a material fact contained
 
                                       6
<PAGE>
in any registration statement, prospectus, offering circular or other document,
or any amendment or supplement thereto, incident to any such registration,
qualification or compliance, or based on any omission (or alleged omission) to
state therein a material fact required to be stated therein or necessary to make
the statements therein, in light of the circumstances in which they were made,
not misleading, or any violation by the Registrant of any rule or regulation
promulgated under the Securities Act applicable to the Registrant in connection
with any such registration, qualification or compliance, and the Registrant will
reimburse the Holder and, each of its directors and officers and each person who
controls the Holder within the meaning of Section 15 of the Securities Act, and
each underwriter for any legal and any other expenses reasonably incurred in
connection with investigating, preparing or defending any such claim, loss,
damage, liability or action, provided that the Registrant will not be liable in
any such case to the extent that any such claim, loss, damage, liability or
expense arises out of or is based on any untrue statement or omission or alleged
untrue statement or omission, made in reliance upon and in conformity with
written information furnished to the Registrant by such Holder or director or
officer or controlling person or underwriter seeking indemnification.
 
    (ii) The Holder will indemnify the Registrant, each of its directors and
officers and each underwriter of the Registrant's securities covered by such
registration statement and each person who controls the Registrant within the
meaning of Section 15 of the Securities Act, against all claims, losses, damages
and liabilities (or actions in respect thereof), including any of the foregoing
incurred in settlement of any litigation, commenced or threatened, arising out
of or based on any untrue statement (or alleged untrue statement) of a material
fact contained in any such registration statement, prospectus, offering circular
or other document, or any omission (or alleged omission) to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, or any violation by the Holder of any rule or regulation
promulgated under the Securities Act applicable to the Holder in connection with
any such registration, qualification or compliance, and will reimburse the
Registrant, such directors, officers or control persons or underwriters for any
legal or any other expenses reasonably incurred in connection with
investigating, preparing or defending any such claim, loss, damage, liability or
action, in each case to the extent, but only to the extent, that such untrue
statement (or alleged untrue statement) or omission (or alleged omission) is
made in such registration statement, prospectus, offering circular or other
document in reliance upon and in conformity with written information furnished
to the Registrant by the Holder for use therein, provided that in no event shall
any indemnity under this Section 8(e) exceed the gross proceeds of the offering
received by the Holder.
 
   (iii) Each party entitled to indemnification under this Section 7(e) (the
"INDEMNIFIED PARTY") shall give notice to the party required to provide
indemnification (the "INDEMNIFYING PARTY") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the Indemnifying Party to assume the defense of any such claim or any
litigation resulting therefrom, provided that counsel for the Indemnifying
Party, who shall conduct the defense of such claim or litigation, shall be
approved by the Indemnified Party (whose approval shall not unreasonably be
withheld), and the Indemnified Party may participate in such defense at such
party's expense; PROVIDED, HOWEVER, that the Indemnifying Party shall pay such
expense if representation of the Indemnified Party by counsel retained by the
Indemnifying Party would be inappropriate due to actual or potential differing
interests between the Indemnified Party and any other party represented by such
counsel in such proceeding, and PROVIDED FURTHER that the failure of any
Indemnified Party to give notice as provided herein shall not relieve the
Indemnifying Party of its obligations under this Section 7(e) unless the failure
to give such notice is materially prejudicial to an Indemnifying Party's ability
to defend such action. No Indemnifying Party, in the defense of any such claim
or litigation shall, except with the consent of each Indemnified Party, consent
to entry of any judgment or enter into any settlement which does not include as
an unconditional term thereof the giving by the claimant or plaintiff to such
Indemnified Party of a release from all liability in respect to such claim or
litigation. No Indemnifying Party shall be required to indemnify any Indemnified
Party with respect to any settlement entered into without such Indemnifying
Party's prior consent (which shall not be unreasonably withheld).
 
                                       7
<PAGE>
    (f)  NO CONFLICT.  Notwithstanding anything herein to the contrary, Informix
hereby agrees that the rights granted by this Section 7 shall not conflict with
the limitation on subsequent registration rights contained in Section 1.14 of
the Amended and Restated Investor Rights Agreement dated as of November 5, 1993.
 
    8.  ADJUSTMENT UPON CHANGES IN CAPITALIZATION; RIGHTS PLANS
 
        (a) In the event of any change in the Red Brick Shares by reason of
    stock dividends, stock splits, reverse stock splits, mergers (other than the
    Merger), recapitalizations, combinations, exchanges of shares and the like,
    the type and number of shares or securities subject to the Option and the
    Exercise Price shall be adjusted appropriately, and proper provision shall
    be made in the agreements governing such transaction so that Informix shall
    receive, upon exercise of the Option, the number and class of shares or
    other securities or property that Informix would have received in respect of
    the Red Brick Shares if the Option had been exercised immediately prior to
    such event or the record date therefor, as applicable.
 
        (b) At any time during which the Option is exercisable, and at any time
    after the Option is exercised (in whole or in part, if at all), Red Brick
    shall not amend its Rights Agreement nor adopt a new stockholders rights
    plan that contains provisions for the distribution of rights thereunder as a
    result of Informix being the beneficial owner of shares of Red Brick by
    virtue of the Option being exercisable or having been exercised (or as a
    result of such other party beneficially owning shares issuable in respect of
    any Option Shares).
 
    9.  RESTRICTIVE LEGENDS
 
    Each certificate representing Option Shares issued to Informix hereunder
shall include a legend in substantially the following form:
 
    THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
    UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY BE REOFFERED OR
    SOLD ONLY IF SO REGISTERED OR IF AN EXEMPTION FROM SUCH REGISTRATION IS
    AVAILABLE. SUCH SECURITIES ARE ALSO SUBJECT TO ADDITIONAL RESTRICTIONS
    ON TRANSFER AS SET FORTH IN THE STOCK OPTION AGREEMENT DATED AS OF
    OCTOBER 7, 1998, A COPY OF WHICH MAY BE OBTAINED FROM THE ISSUER.
 
    10.  LISTING AND HSR FILING
 
    Red Brick, upon the request of Informix, shall promptly file an application
to list the Red Brick Shares to be acquired upon exercise of the Option for
quotation on the Nasdaq National Market and shall use its reasonable efforts to
obtain approval of such listing as soon as practicable. Promptly after the date
hereof, each of the parties hereto shall promptly file with the Federal Trade
Commission and the Antitrust Division of the United States Department of Justice
all required premerger notification and report forms and other documents and
exhibits required to be filed under the HSR Act to permit the acquisition of the
Red Brick Shares subject to the Option at the earliest possible date.
 
    11.  BINDING EFFECT
 
    This Agreement shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and permitted assigns. Nothing contained
in this Agreement, express or implied, is intended to confer upon any person
other than the parties hereto and their respective successors and permitted
assigns any rights or remedies of any nature whatsoever by reason of this
Agreement. Certificates representing shares sold in a registered public offering
pursuant to Section 7 shall not be required to bear the legend set forth in
Section 9.
 
                                       8
<PAGE>
    12.  SPECIFIC PERFORMANCE
 
    The parties recognize and agree that if for any reason any of the provisions
of this Agreement are not performed in accordance with their specific terms or
are otherwise breached, immediate and irreparable harm or injury would be caused
for which money damages would not be an adequate remedy. Accordingly, each party
agrees that in addition to other remedies the other party shall be entitled to
an injunction restraining any violation or threatened violation of the
provisions of this Agreement. In the event that any action shall be brought in
equity to enforce the provisions of the Agreement, neither party will allege,
and each party hereby waives the defense, that there is an adequate remedy at
law.
 
    13.  ENTIRE AGREEMENT
 
    This Agreement and the Merger Agreement (including the appendices and
exhibits thereto) constitute the entire agreement between the parties with
respect to the subject matter hereof and supersede all other prior agreements
and understandings, both written and oral, between the parties with respect to
the subject matter hereof.
 
    14.  FURTHER ASSURANCES
 
    Each party will execute and deliver all such further documents and
instruments and take all such further action as may be necessary in order to
consummate the transactions contemplated hereby.
 
    15.  VALIDITY
 
    The invalidity or unenforceability of any provision of this Agreement shall
not affect the validity or enforceability of the other provisions of this
Agreement, which shall remain in full force and effect. In the event any
Governmental Entity of competent jurisdiction holds any provision of this
Agreement to be null, void or unenforceable, the parties hereto shall negotiate
in good faith and shall execute and deliver an amendment to this Agreement in
order, as nearly as possible, to effectuate, to the extent permitted by law, the
intent of the parties hereto with respect to such provision.
 
    16.  NOTICES
 
    All notices and other communications hereunder shall be in writing and shall
be deemed given if delivered personally or by commercial delivery service, or
sent via telecopy (receipt confirmed) to the parties at the following addresses
or telecopy numbers (or at such other address or telecopy numbers for a party as
shall be specified by like notice):
 
        (a) if to Red Brick, to:
 
       Red Brick Systems, Inc.
       485 Alberto Way
       Los Gatos, CA 95032
       Telephone: (408) 399-3200
       Facsimile: (408) 399-7264
       Attn: President and Executive Officer
 
       with a copy to:
 
       Gunderson Dettmer Stough Villeneuve
       Franklin & Hachigian, LLP
       155 Constitution Drive
       Menlo Park, CA 94025
       Telephone: (650) 321-2400
       Facsimile: (650) 321-2800
       Attn: Daniel E. O'Connor, Esq.
 
                                       9
<PAGE>
       (b) if to Informix, to:
 
       Informix Corporation
       4100 Bohannon Drive
       Menlo Park, CA 94025
       Telephone: (650) 926-6300
       Facsimile: (650) 322-1239
       Attn: President and Executive Officer
 
       with a copy to:
 
       Wilson Sonsini Goodrich & Rosati
       650 Page Mill Road
       Palo Alto, CA 94304-1050
       Telephone: (650) 493-9300
       Facsimile: (650) 493-6811
       Attn: Martin W. Korman, Esq/Jeffrey A. Herbst, Esq.
 
    17.  GOVERNING LAW
 
    This Agreement shall be governed by and construed in accordance with the
laws of the State of Delaware applicable to agreements made and to be performed
entirely within such State.
 
    18.  COUNTERPARTS
 
    This Agreement may be executed in two counterparts, each of which shall be
deemed to be an original, but both of which, taken together, shall constitute
one and the same instrument.
 
    19.  EXPENSES
 
    Except as otherwise expressly provided herein or in the Merger Agreement,
all costs and expenses incurred in connection with the transactions contemplated
by this Agreement shall be paid by the party incurring such expenses.
 
    20.  AMENDMENTS; WAIVER
 
    This Agreement may be amended by the parties hereto and the terms and
conditions hereof may be waived only by an instrument in writing signed on
behalf of each of the parties hereto, or, in the case of a waiver, by an
instrument signed on behalf of the party waiving compliance.
 
    21.  ASSIGNMENT
 
    Red Brick may not sell, transfer, assign or otherwise dispose of any of its
rights or obligations under this Agreement or the Option created hereunder to
any other person, without the express written consent of Informix. The rights
and obligations hereunder shall inure to the benefit of and be binding upon any
successor of a party hereto.
 
                                       10
<PAGE>
    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their respective duly authorized officers as of the date first above
written.
 
                                          RED BRICK SYSTEMS, INC.
 
                                          By:
                                          --------------------------------------
 
                                               Name:  Christopher G. Erickson
 
                                                 Title:  PRESIDENT AND CHIEF
                                                      EXECUTIVE OFFICER
 
                                          INFORMIX CORPORATION
 
                                          By:
                                          --------------------------------------
 
                                               Name:  Robert J. Finocchio, Jr.
 
                                                 Title:  PRESIDENT AND CHIEF
                                                      EXECUTIVE OFFICER
 
                                       11


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission